Here in the US engineering decisions are often dictated by legal concerns, you have a 75lbs box in Europe the ME design the straps to hold 85 or 90lbs just in case…. In the US they go more for like 150-200lbs and they actually use test benches to check how much it can hold!
toggle quoted message
Show quoted text
On Feb 25, 2022, at 15:47, Paul Bicknell via groups.io <admin@...> wrote:
?Actually HP did have a problem with the 70004 display and the side caring handle
And from memory the instruction was to remove one handle that was suspect
Paul
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of n8zmTWH@...
Sent: 25 February 2022 21:22
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Does anyone here really seriously think that HP would have put a flimsy side handle on a 45 lb. box? Shucks, their lawyers wouldn't have allowed it!
I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift!
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 25, 2022 3:41 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Forgive me for jumping in, but I must echo Lothar's comments about these straps. I have several hundred HP instruments here, and have had several hundred more go through my hands over the years. I always use the straps, and I have never seen one break, and have never heard of a broken one.
I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such. This is not a problem in the HP world, and it never has been.
-Dave
On 2/25/22 15:36, Rich Miller via groups.io wrote:
Ok I will take your word for it. The side straps do not instill a lot
of confidence, but if you say you never seen them break, then I will
just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...>
wrote:
?
Btw I considered this in the calculation ? the beauty of having
simulation modules in solidworks
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io
<mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That
leverage counts for a lot.
*From:* [email protected]
<[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer
pitch which is better to handle pull , if I remember they were either
M6 or M8 screws , doing some quick calculations you would need about
127lbs of force to rip a correctly formed M8 out of a Die cast frame
, the 8753 weighs about 75lbs
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io
<mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side
rails, and the plastic is just a cover for a stainless steel strap
that is held by those screws. I have handled a lot of HPAK TE over
the years and never had a strap fail.
-----Original Message-----
From: [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> On Behalf Of Rich
Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
<mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not
trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the
5342a took quite a bit of time to assemble the cosmetically best
parts into my shack unit. The 2nd best looking 5342a is on loan to a
ham friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP
8642a,
for sale/trade.
Wilko
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Actually HP did have a problem with the 70004 display and the side caring handle
And from memory the instruction was to remove one handle that was suspect
Paul
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] [mailto: [email protected]] On Behalf Of n8zmTWH@... Sent: 25 February 2022 21:22 To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles Does anyone here really seriously think that HP would have put a flimsy side handle on a 45 lb. box? Shucks, their lawyers wouldn't have allowed it! I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift! -----Original Message----- From: [email protected] < [email protected]> On Behalf Of Dave McGuire Sent: Friday, February 25, 2022 3:41 PM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles Forgive me for jumping in, but I must echo Lothar's comments about these straps. I have several hundred HP instruments here, and have had several hundred more go through my hands over the years. I always use the straps, and I have never seen one break, and have never heard of a broken one. I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such. This is not a problem in the HP world, and it never has been. -Dave On 2/25/22 15:36, Rich Miller via groups.io wrote: Ok I will take your word for it. The side straps do not instill a lot
of confidence, but if you say you never seen them break, then I will
just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...>
wrote:
?
Btw I considered this in the calculation ? the beauty of having
simulation modules in solidworks
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io
<mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That
leverage counts for a lot.
*From:* [email protected]
<[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer
pitch which is better to handle pull , if I remember they were either
M6 or M8 screws , doing some quick calculations you would need about
127lbs of force to rip a correctly formed M8 out of a Die cast frame
, the 8753 weighs about 75lbs
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io
<mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side
rails, and the plastic is just a cover for a stainless steel strap
that is held by those screws. I have handled a lot of HPAK TE over
the years and never had a strap fail.
-----Original Message-----
From: [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> On Behalf Of Rich
Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
<mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not
trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the
5342a took quite a bit of time to assemble the cosmetically best
parts into my shack unit. The 2nd best looking 5342a is on loan to a
ham friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP
8642a,
for sale/trade.
Wilko
-- Dave McGuire, AK4HZ New Kensington, PA
|
I carried my B40 inside, but I never considered taking it down the stairs to my lab area, alone. The B40 is a beast but one hell of an interesting receiver!
Please do check in on the Murphy B40 user group on Facebook.
toggle quoted message
Show quoted text
On Feb 25, 2022, at 4:39 PM, Paul Bicknell <admin@...> wrote:
? We had an enquiry about a B40 radio they are 114 Lbs and I cared my first
one at age 15 and moved one last Xmas and I am now 64
Going to the pub now
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave McGuire
Sent: 25 February 2022 21:25
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
On February 25, 2022 4:22:18 PM n8zmTWH@... wrote:
I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be
moved via forklift!
A pallet and a forklift for 90lbs? Wow, wimps. Seriously.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
|
We had an enquiry about a B40 radio they are 114 Lbs and I cared my first
one at age 15 and moved one last Xmas and I am now 64
Going to the pub now
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected][mailto: [email protected]] On Behalf Of Dave McGuire Sent: 25 February 2022 21:25 To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles On February 25, 2022 4:22:18 PM n8zmTWH@... wrote: I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift! A pallet and a forklift for 90lbs? Wow, wimps. Seriously. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
Ohhhh, I live in the land of Lawyers (DC Metro Area). Their lawyers could careless, I suspect the engineers were more responsible for this decision.
I have to say, back in my twenties, I would have been all over 90Lbs. I now weigh <150LBS, vision is declining, and so are the hormones. Would lift it, but would need a few moments to contemplate what I was about to undertake.
toggle quoted message
Show quoted text
On Feb 25, 2022, at 4:22 PM, n8zmTWH@... wrote:
?Does anyone here really seriously think that HP would have put a flimsy side handle on a 45 lb. box? Shucks, their lawyers wouldn't have allowed it!
I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift!
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 25, 2022 3:41 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Forgive me for jumping in, but I must echo Lothar's comments about
these straps. I have several hundred HP instruments here, and have had
several hundred more go through my hands over the years. I always use
the straps, and I have never seen one break, and have never heard of a
broken one.
I don't know your background, but many people coming from lesser test
equipment are rightly suspicious of cheap handles and such. This is not
a problem in the HP world, and it never has been.
-Dave
On 2/25/22 15:36, Rich Miller via groups.io wrote:
Ok I will take your word for it. The side straps do not instill a lot of
confidence, but if you say you never seen them break, then I will just
send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...>
wrote:
?
Btw I considered this in the calculation ? the beauty of having
simulation modules in solidworks
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That
leverage counts for a lot.
*From:* [email protected]
<[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer
pitch which is better to handle pull , if I remember they were either
M6 or M8 screws , doing some quick calculations you would need about
127lbs of force to rip a correctly formed M8 out of a Die cast frame ,
the 8753 weighs about 75lbs
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side
rails, and the plastic is just a cover for a stainless steel strap
that is held by those screws. I have handled a lot of HPAK TE over the
years and never had a strap fail.
-----Original Message-----
From: [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> On Behalf Of Rich
Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
<mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not
trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the
5342a took quite a bit of time to assemble the cosmetically best parts
into my shack unit. The 2nd best looking 5342a is on loan to a ham
friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP 8642a,
for sale/trade.
Wilko
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Re: HP 1727A CRO: Problem with the vertical output amplifier.
On Fri, Feb 25, 2022 at 11:42 AM, Alex_03 wrote:
I appear to have misreported some things...
I can get pins 5&7 of U2 to be exactly the same with the balance control(R23), then on U2 pin 2 I get 42.30V and on pin 3 I get 41.81V, that is still a difference of half a volt give or take a millivolt or two, is this what causes the distortion?
-------- This observation is unusual. If U2 is working well pins 5&7 should be very stiff, like an opamp +/- terminals with feedback applied. If you could move pins 5&7 by 270mV but output only changes by 500mV it doesn't sound right. On the other hand DC voltages around U2 are pretty much right on target, and you are able to see a waveform on the display so at least DC wise it is working. Internally collectors of diff pair may be short and would cause such behavior but unlikely. Does pin 6 voltage change while you are adjusting R25? If you disconnect vertical plates from the A5 board and measure resistance from each plate connection to 53.3V (~ 165-ohm) and measure differentially (~ 2*165-ohm) do they look OK? Also check for a short between pins ?2&3. Ozan What voltage is mid point of R23 (~ 31.1V expected)?
|
On February 25, 2022 4:22:18 PM n8zmTWH@... wrote: I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift! A pallet and a forklift for 90lbs? Wow, wimps. Seriously. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
Does anyone here really seriously think that HP would have put a flimsy side handle on a 45 lb. box? Shucks, their lawyers wouldn't have allowed it!
I've dealt with their 90+ lb. PNA-X instrument, labeled a 2-man lift, and they use the same design. It doesn't ship in a box, but on a pallet to be moved via forklift!
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Dave McGuire Sent: Friday, February 25, 2022 3:41 PM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles Forgive me for jumping in, but I must echo Lothar's comments about these straps. I have several hundred HP instruments here, and have had several hundred more go through my hands over the years. I always use the straps, and I have never seen one break, and have never heard of a broken one. I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such. This is not a problem in the HP world, and it never has been. -Dave On 2/25/22 15:36, Rich Miller via groups.io wrote: Ok I will take your word for it. The side straps do not instill a lot of
confidence, but if you say you never seen them break, then I will just
send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...>
wrote:
?
Btw I considered this in the calculation ? the beauty of having
simulation modules in solidworks
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That
leverage counts for a lot.
*From:* [email protected]
<[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer
pitch which is better to handle pull , if I remember they were either
M6 or M8 screws , doing some quick calculations you would need about
127lbs of force to rip a correctly formed M8 out of a Die cast frame ,
the 8753 weighs about 75lbs
Sent from Mail <> for
Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected]
<mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side
rails, and the plastic is just a cover for a stainless steel strap
that is held by those screws. I have handled a lot of HPAK TE over the
years and never had a strap fail.
-----Original Message-----
From: [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> On Behalf Of Rich
Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
<mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not
trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the
5342a took quite a bit of time to assemble the cosmetically best parts
into my shack unit. The 2nd best looking 5342a is on loan to a ham
friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP 8642a,
for sale/trade.
Wilko
-- Dave McGuire, AK4HZ New Kensington, PA
|
Feel priviledged if you never had to tote a 8673D around
?? or a PNA-X
Instruments have gotten lighter mostly because the older instruments all used transformers and now everything is SMPS also they no longer use machined enclosures but die-cast clamshell boxes
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
?
I use plenty of high end test equipment, I own some too. Problem is, not many of those weigh as much. Sign of the times I suppose. When I went to pick this up, was a bit surprised at its weight. I read how much
it weighed prior, but that calculus did not seem to register until I had to pick it up myself.
Speaking of heavy, in the 90’s I used to lug a 8640B around an aircraft carrier. That was considered portable at the time. I am now much older, and would not dare carry a 8640B up or down a ladder well.
> On Feb 25, 2022, at 3:40 PM, Dave McGuire <mcguire@...> wrote:
>
> ?
>? Forgive me for jumping in, but I must echo Lothar's comments about these straps.? I have several hundred HP instruments here, and have had several hundred more go through my hands over the years.? I always use the straps, and I have never seen one break,
and have never heard of a broken one.
>
>? I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such.? This is not a problem in the HP world, and it never has been.
>
>????????????? -Dave
>
>> On 2/25/22 15:36, Rich Miller via groups.io wrote:
>> Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
>>>> On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote:
>>>
>>> ?
>>>
>>> Btw I considered this in the calculation
? the beauty of having simulation modules in solidworks
>>>
>>> Sent from Mail <> for Windows
>>>
>>> *From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
>>> *Sent: *Friday, February 25, 2022 2:30 PM
>>> *To: *[email protected] <mailto:[email protected]>
>>> *Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
>>>
>>> Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
>>>
>>> *From:* [email protected] <[email protected]> *On Behalf Of *Lothar baier
>>> *Sent:* Friday, February 25, 2022 3:14 PM
>>> *To:* [email protected]
>>> *Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
>>>
>>> Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly formed M8
out of a Die cast frame , the 8753 weighs about 75lbs
>>>
>>> Sent from Mail <> for Windows
>>>
>>> *From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
>>> *Sent: *Friday, February 25, 2022 2:10 PM
>>> *To: *[email protected] <mailto:[email protected]>
>>> *Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
>>>
>>> The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years and never had a strap fail.
>>>
>>> -----Original Message-----
>>> From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]>>
On Behalf Of Rich Miller via groups.io
>>> Sent: Friday, February 25, 2022 2:48 PM
>>> To: [email protected] <mailto:[email protected]>
>>> Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
>>>
>>> Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
>>>
>>> Rich
>>>
>>> > On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
>>> >
>>> > ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>>> >
>>> > I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>>> >
>>> > For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>>> >
>>> > Wilko
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
>
>
>
>
?
|
Unfortunately, this one is going to my office, and back home again with me. Long story short, I have a “special case” employee who begins to lose his mind if you grab the Advantest VNA and put it on your desk. Instead of listening to that drivel, I use this at the office too.
It’s already paid for itself, help me diagnose a Amplifier Output Matching Network problem that had me scratching my head for a while.
toggle quoted message
Show quoted text
On Feb 25, 2022, at 3:47 PM, Lothar baier <Lothar@...> wrote:
?
Lol Tucker went out of business years ago
?
I understand your concerns and its natural to be suspicious of the straps but I suggest if you get the time take a strap of and take a closer look at the straps and how they are attached to the instrument !? the only scenario I can think
of would be somebody putting too much torque on the screws subsequently damaging the threats but then again how many times you actually tote a 75lbs instrument ?
?
?
Sent from for Windows
?
?
Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote:
?
Btw I considered this in the calculation
? the beauty of having simulation modules in solidworks
?
Sent from for Windows
?
?
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
?
?
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
I use plenty of high end test equipment, I own some too. Problem is, not many of those weigh as much. Sign of the times I suppose. When I went to pick this up, was a bit surprised at its weight. I read how much it weighed prior, but that calculus did not seem to register until I had to pick it up myself.
Speaking of heavy, in the 90’s I used to lug a 8640B around an aircraft carrier. That was considered portable at the time. I am now much older, and would not dare carry a 8640B up or down a ladder well.
toggle quoted message
Show quoted text
On Feb 25, 2022, at 3:40 PM, Dave McGuire <mcguire@...> wrote:
?
Forgive me for jumping in, but I must echo Lothar's comments about these straps. I have several hundred HP instruments here, and have had several hundred more go through my hands over the years. I always use the straps, and I have never seen one break, and have never heard of a broken one.
I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such. This is not a problem in the HP world, and it never has been.
-Dave
On 2/25/22 15:36, Rich Miller via groups.io wrote:
Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote: ?
Btw I considered this in the calculation ? the beauty of having simulation modules in solidworks
Sent from Mail <> for Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected] <mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
*From:* [email protected] <[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
Sent from Mail <> for Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected] <mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years and never had a strap fail.
-----Original Message-----
From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]>> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected] <mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
Wilko
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Lol Tucker went out of business years ago
?
I understand your concerns and its natural to be suspicious of the straps but I suggest if you get the time take a strap of and take a closer look at the straps and how they are attached to the instrument !? the only scenario I can think
of would be somebody putting too much torque on the screws subsequently damaging the threats but then again how many times you actually tote a 75lbs instrument ?
?
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:36 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
?
Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote:
?
Btw I considered this in the calculation
? the beauty of having simulation modules in solidworks
?
Sent from for Windows
?
?
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
?
?
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Forgive me for jumping in, but I must echo Lothar's comments about these straps. I have several hundred HP instruments here, and have had several hundred more go through my hands over the years. I always use the straps, and I have never seen one break, and have never heard of a broken one.
I don't know your background, but many people coming from lesser test equipment are rightly suspicious of cheap handles and such. This is not a problem in the HP world, and it never has been.
-Dave
toggle quoted message
Show quoted text
On 2/25/22 15:36, Rich Miller via groups.io wrote: Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote:
?
Btw I considered this in the calculation ? the beauty of having simulation modules in solidworks
Sent from Mail <> for Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:30 PM
*To: *[email protected] <mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
*From:* [email protected] <[email protected]> *On Behalf Of *Lothar baier
*Sent:* Friday, February 25, 2022 3:14 PM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
Sent from Mail <> for Windows
*From: *n8zmTWH via groups.io <mailto:n8zmTWH@...>
*Sent: *Friday, February 25, 2022 2:10 PM
*To: *[email protected] <mailto:[email protected]>
*Subject: *Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years and never had a strap fail.
-----Original Message-----
From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]>> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected] <mailto:[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@... <mailto:wkb@...>> wrote:
?I smell a small amount OCD. But kidding aside, *beautiful* kit!
I too want my equipment as clean as possible. Which, eg for the
5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
For those in EU, I have 2 sets of HP handles available, ex-HP 8642a,
for sale/trade.
Wilko
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Ok I will take your word for it. The side straps do not instill a lot of confidence, but if you say you never seen them break, then I will just send this one to Tucker C/O Lothar when it does :)
toggle quoted message
Show quoted text
On Feb 25, 2022, at 3:33 PM, Lothar baier <Lothar@...> wrote:
?
Btw I considered this in the calculation
? the beauty of having simulation modules in solidworks
?
Sent from for Windows
?
?
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
?
?
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Btw I considered this in the calculation
? the beauty of having simulation modules in solidworks
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: n8zmTWH via groups.io
Sent: Friday, February 25, 2022 2:30 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
?
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot.
?
?
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Plus they were side-loaded, not being pulled straight out. That leverage counts for a lot. ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Lothar baier
Sent: Friday, February 25, 2022 3:14 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles? Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly formed M8 out of a Die cast frame , the 8753 weighs about 75lbs ? Sent from for Windows ? ? The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Re: How can I measure the bandwidth of an audio transformer with the HP8903B ?
Thanks Tom for clarifying that the inductance of the transformer is predominant over the parasitic inductance of the resistors.
-- Cheers
? ? Attilio
|
Bottom line is that with the weight of the 8753 there is no conceivable way the strap can fail ,? I fixed and handled hundrets of 8753 and other instruments at tucker and don’t remember ever a strap breaking , same goes for the PNA and
8753 units we used at nokia
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: 搁别苍é别 via groups.io
Sent: Friday, February 25, 2022 2:20 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
?
and do not forget it is and angled force pull and a screw on either end ...so divide by 2. So it is a combination of pull and shear.
搁别苍é别
On 2/25/22 12:13 PM, Lothar baier wrote:
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
?
|
and do not forget it
is and angled force pull and a screw on either end ...so divide
by 2. So it is a combination of pull and shear.
搁别苍é别
On 2/25/22 12:13 PM, Lothar baier
wrote:
toggle quoted message
Show quoted text
Yep the screws are metric on top of it
which means they have a finer pitch which is better to handle
pull , if I remember they were either M6 or M8 screws , doing
some quick calculations you would need about 127lbs of force
to rip a correctly formed M8 out of a Die cast frame , the
8753 weighs about 75lbs
?
Sent from for Windows
?
?
The straps are
mounted with quite sturdy screws into the frame side rails,
and the plastic is just a cover for a stainless steel strap
that is held by those screws. I have handled a lot of HPAK TE
over the years and never had a strap fail.
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of
Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E
Handles
Actually - My instrument came with no front handles, and I do
not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte
<wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside,
*beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg
for the 5342a took quite a bit of time to assemble the
cosmetically best parts into my shack unit. The 2nd best
looking 5342a is on loan to a ham friend, #3 is incomplete and
lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available,
ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Yep the screws are metric on top of it which means they have a finer pitch which is better to handle pull , if I remember they were either M6 or M8 screws , doing some quick calculations you would need about 127lbs of force to rip a correctly
formed M8 out of a Die cast frame , the 8753 weighs about 75lbs
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: n8zmTWH via groups.io
Sent: Friday, February 25, 2022 2:10 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
?
The straps are mounted with quite sturdy screws into the frame side rails, and the plastic is just a cover for a stainless steel strap that is held by those screws. I have handled a lot of HPAK TE over the years
and never had a strap fail.
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Rich Miller via groups.io
Sent: Friday, February 25, 2022 2:48 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WTB HP-8753E Handles
Actually - My instrument came with no front handles, and I do not trust the straps when carrying this behemoth.
Rich
> On Feb 25, 2022, at 12:36 PM, Wilko Bulte <wkb@...> wrote:
>
> ?I smell a small amount OCD. But kidding aside, *beautiful* kit!
>
> I too want my equipment as clean as possible. Which, eg for the 5342a took quite a bit of time to assemble the cosmetically best parts into my shack unit. The 2nd best looking 5342a is on loan to a ham friend, #3 is incomplete and lives in the cellar.
>
> For those in EU, I have 2 sets of HP handles available, ex-HP 8642a, for sale/trade.
>
> Wilko
>
>
>
>
>
>
>
?
|
Paul Bicknell
Dave McGuire
Attilio
