Re: VNA ECal PC software 85062/85097/8720C
Hi
you have located the software of 85097?? I'm looking to purchase one units but all come without software.
Thanks
73! Iban
eb3frn
|
Re: 8341A *restoration adventure*
RubenRubio -
You are probably going to need to do an unleveled RF adjustment - but DO NOT touch any adjustments yet.
I suggest you try measuring power at the INPUT of the attenuator or the output of the SYTM - there could be a broken or damaged cable.
PRESET;PEAK runs an auto leveling program
PRESE;CW;SHIFT;METER eliminates the ALC circuitry and drives the modulator directly by the RPG - When you do this test, you get the max output unless you turn the RPG. I usually do PRESET;CW;SHIFT;METER followed by power measurements at various frequencies.
At this point, I'm going to guess there are problems (or adjustments) on the SRD bias board and also on the YIG tracking board
Cheers!
Bruce
Quoting RubenRubio <rubenrb2019@...>:
toggle quoted message
Show quoted text
Hi Bruce
Yes, I have the 8341A operating manual and the 8340A's four manuals w/ good scans from KO4BB website. Unfortunately, I cannot find the service volumes for the 8341A itself, but the 8340A's are very similar, hope.
The PRESET;SHIFT;MANUAL and the PRESET;SHIFT;EXT checks shows no faults at all, no one is blinking. No red fault led in the ALC board is on, also the loops are locked. That's weird, maybe only a calibration is needed to fix the problem.
What you mean when you said 'do a PEAK'? SHIFT + PEAK? or PEAK only? I do the last and power don't rise up a bit.
On band 0, non readable (low) at 10 MHz, -17 dBm @ 1 GHz, -14.3 dBm @ 2.1 GHz
On band 1, + 5.4 dBm @ 2.3 GHz, +8.9 dBm @ 5 GHz, +8 dBm @ 6.9 GHz
On band 2, -11.7 dBm @ 7 GHz, -7 dBM @ 10 GHz, +4.2 dBm @ 13 GHz
On band 3,very low (no readings on both meters) at 13,5 GHz, -11 dBM @ 15 GHz, -8.5 dBm @ 18 GHz
The only low but reasonable readings are on band 1, the others are very low.
Regards,
R.
|
good equip in dumpsters (was: Replacing missing button cap(s) - HP 339A)
On 11/13/21 19:38, Larry McElhiney via groups.io wrote: Corporations tend to depreciate expensive equipment while it is in use?in order to take the tax write off. ?When it is fully depreciated,
it can only be scrapped or donated, not sold. ?Otherwise, IRS gets annoyed¡ That's how I understand it and it applies to liquidation auctions also. The way the ones in charge of bean counting don't care to even tell their own employees about the dumping, or sometimes they forbid their own employees to accept such dumped depreciated equip is what is sad. The liquidation auction is a much better fate than dumping with no notice...
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Re: Replacing missing button cap(s) - HP 339A
We are all just temporary custodians and bragging rights will seize when we do. 73 ¨C Mike ? Mike B. Feher, N4FS 89 Arnold Blvd. Howell NJ 07731 848-245-9115 ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Dave Wise
Sent: Sunday, November 14, 2021 12:16 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Replacing missing button cap(s) - HP 339A? I own my instruments, but I am mostly their custodian.? Or steward, if you like.? I¡¯m glad to have relationships other than ownership. ? Dave Wise ? ? I'm not picking a fight, but trying to understand what
you said.
-Chuck Harris
On Sun, 14 Nov 2021 09:00:04 -0500 "Dave McGuire"
<mcguire@...> wrote:
> No, Chuck, I'm not implying that at all. Go pick a fight somewhere
> else.
>
> -Dave
>
> On November 14, 2021 8:32:23 AM "Chuck Harris" <cfharris@...>
> wrote:
> > Are you implying that materials owned by my company,
> > and hence me, aren't mine?
> >
> > Communism and socialism are based on that very idea.
> >
> > The belief that personal ownership does not exist, but
> > rather people only have stewardship of their "belongings",
> > carries forward to the logical conclusion that people
> > are not the owners of their bodies and minds.
> >
> > That condition is known as slavery.
> >
> > -Chuck Harris
> >
> >
> > On Sat, 13 Nov 2021 20:59:30 -0500 "Dave McGuire"
> > <mcguire@...> wrote:
> >> Oh, I'm very much aware. (not my first BBQ) The problem is that
> >> people in general, but suits in particular, don't understand the
> >> difference between "ownership" and "custodianship".
> >>
> >> -Dave
> >>
> >> On November 13, 2021 8:16:09 PM "Harvey White"
> >> <madyn@...> wrote:
> >>> Suits have a different perspective.
> >>>
> >>> For a suit.....
> >>>
> >>> What is this asset? Does it cost too much to have? Is it
> >>> economical for us to get rid of it? If so, throw it away and
> >>> claim a tax writeoff.
> >>>
> >>> They're not paid to consider the intrinsic value of that to
> >>> anybody. It doesn't contribute to how they are judged, which is
> >>> the corporate bottom line.
> >>>
> >>> For a scrapper?
> >>>
> >>> What are the pieces worth? What can I get for these useless
> >>> cables I've cut off, they're all copper, aren't they? Manuals?
> >>> What's the price of used paper per ton? How much gold can I get
> >>> from this?
> >>>
> >>> Hobbiests and engineers?
> >>>
> >>> Best of luck.
> >>>
> >>> Harvey
> >>>
> >>>
> >>> On 11/13/2021 7:06 PM, Dave McGuire wrote:
> >>>> As much as those things are worth, someone trashed one? Holy
> >>>> crap. I'm guessing suits.
> >>>>
> >>>> -Dave
> >>>>
> >>>> On November 13, 2021 3:18:27 PM "bandrsn via groups.io"
> >>>> <bandrsn@...> wrote:
> >>>>> I rescued a nice HP 339A distortion analyzer from an e-waste bin
> >>>>> at work, but not before another piece of equipment was dropped
> >>>>> in an sheared off the 400Hz filter button cap, which was lost.
> >>>>> There is about 1/8 inch of the push-button switch post left
> >>>>> inside, behind the front panel, and the switch stills works fine
> >>>>> if poked with a stick, but looks bad.
> >>>>>
> >>>>> Questions:
> >>>>> 1. Is there any source for the grey cap nowadays?
> >>>>> 2. Could a remaining button cap next to it be pulled straight
> >>>>> off as a sample? 3. Has anyone made a new button from a sample
> >>>>> with either epoxy in a mold or 3D printer? 4. Any other ideas
> >>>>> for button cap repair/replacement I'm missing besides buying
> >>>>> another 339A for parts?
> >>>>>
> >>>>> Thanks.
> >>>>> -Bruce A., Santa Barbara
> >>>>
> >>>> --
> >>>> Dave McGuire, AK4HZ
> >>>> New Kensington, PA
> >>
> >>
> >> --
> >> Dave McGuire, AK4HZ
> >> New Kensington, PA
> >
> >
> >
> >
>
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
>
>
>
>
>
>
|
Re: Replacing missing button cap(s) - HP 339A
On Saturday 13 November 2021 07:06:06 pm Dave McGuire wrote:
As much as those things are worth, someone trashed one? Holy crap. I'm guessing suits.
-Dave
A testament to the ill effects of neckties! On November 13, 2021 3:18:27 PM "bandrsn via groups.io" <bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin at work, but not before another piece of equipment was dropped in an sheared off the 400Hz filter button cap, which was lost. There is about 1/8 inch of the push-button switch post left inside, behind the front panel, and the switch stills works fine if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off as a sample?
3. Has anyone made a new button from a sample with either epoxy in a mold or 3D printer?
4. Any other ideas for button cap repair/replacement I'm missing besides buying another 339A for parts?
Thanks.
-Bruce A., Santa Barbara --
Dave McGuire, AK4HZ
New Kensington, PA -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin
|
Re: Replacing missing button cap(s) - HP 339A
I own my instruments, but I am mostly their custodian.? Or steward, if you like.? I¡¯m glad to have relationships other than ownership.
?
Dave Wise
?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]]
On Behalf Of Chuck Harris via groups.io
Sent: Sunday, November 14, 2021 8:51 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Replacing missing button cap(s) - HP 339A
?
I'm not picking a fight, but trying to understand what
you said.
-Chuck Harris
On Sun, 14 Nov 2021 09:00:04 -0500 "Dave McGuire"
<mcguire@...> wrote:
> No, Chuck, I'm not implying that at all. Go pick a fight somewhere
> else.
>
> -Dave
>
> On November 14, 2021 8:32:23 AM "Chuck Harris" <cfharris@...>
> wrote:
> > Are you implying that materials owned by my company,
> > and hence me, aren't mine?
> >
> > Communism and socialism are based on that very idea.
> >
> > The belief that personal ownership does not exist, but
> > rather people only have stewardship of their "belongings",
> > carries forward to the logical conclusion that people
> > are not the owners of their bodies and minds.
> >
> > That condition is known as slavery.
> >
> > -Chuck Harris
> >
> >
> > On Sat, 13 Nov 2021 20:59:30 -0500 "Dave McGuire"
> > <mcguire@...> wrote:
> >> Oh, I'm very much aware. (not my first BBQ) The problem is that
> >> people in general, but suits in particular, don't understand the
> >> difference between "ownership" and "custodianship".
> >>
> >> -Dave
> >>
> >> On November 13, 2021 8:16:09 PM "Harvey White"
> >> <madyn@...> wrote:
> >>> Suits have a different perspective.
> >>>
> >>> For a suit.....
> >>>
> >>> What is this asset? Does it cost too much to have? Is it
> >>> economical for us to get rid of it? If so, throw it away and
> >>> claim a tax writeoff.
> >>>
> >>> They're not paid to consider the intrinsic value of that to
> >>> anybody. It doesn't contribute to how they are judged, which is
> >>> the corporate bottom line.
> >>>
> >>> For a scrapper?
> >>>
> >>> What are the pieces worth? What can I get for these useless
> >>> cables I've cut off, they're all copper, aren't they? Manuals?
> >>> What's the price of used paper per ton? How much gold can I get
> >>> from this?
> >>>
> >>> Hobbiests and engineers?
> >>>
> >>> Best of luck.
> >>>
> >>> Harvey
> >>>
> >>>
> >>> On 11/13/2021 7:06 PM, Dave McGuire wrote:
> >>>> As much as those things are worth, someone trashed one? Holy
> >>>> crap. I'm guessing suits.
> >>>>
> >>>> -Dave
> >>>>
> >>>> On November 13, 2021 3:18:27 PM "bandrsn via groups.io"
> >>>> <bandrsn@...> wrote:
> >>>>> I rescued a nice HP 339A distortion analyzer from an e-waste bin
> >>>>> at work, but not before another piece of equipment was dropped
> >>>>> in an sheared off the 400Hz filter button cap, which was lost.
> >>>>> There is about 1/8 inch of the push-button switch post left
> >>>>> inside, behind the front panel, and the switch stills works fine
> >>>>> if poked with a stick, but looks bad.
> >>>>>
> >>>>> Questions:
> >>>>> 1. Is there any source for the grey cap nowadays?
> >>>>> 2. Could a remaining button cap next to it be pulled straight
> >>>>> off as a sample? 3. Has anyone made a new button from a sample
> >>>>> with either epoxy in a mold or 3D printer? 4. Any other ideas
> >>>>> for button cap repair/replacement I'm missing besides buying
> >>>>> another 339A for parts?
> >>>>>
> >>>>> Thanks.
> >>>>> -Bruce A., Santa Barbara
> >>>>
> >>>> --
> >>>> Dave McGuire, AK4HZ
> >>>> New Kensington, PA
> >>
> >>
> >> --
> >> Dave McGuire, AK4HZ
> >> New Kensington, PA
> >
> >
> >
> >
>
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
>
>
>
>
>
>
|
Re: Replacing missing button cap(s) - HP 339A
I'm not picking a fight, but trying to understand what you said. -Chuck Harris On Sun, 14 Nov 2021 09:00:04 -0500 "Dave McGuire" <mcguire@...> wrote: No, Chuck, I'm not implying that at all. Go pick a fight somewhere
else.
-Dave
On November 14, 2021 8:32:23 AM "Chuck Harris" <cfharris@...>
wrote:
Are you implying that materials owned by my company,
and hence me, aren't mine?
Communism and socialism are based on that very idea.
The belief that personal ownership does not exist, but
rather people only have stewardship of their "belongings",
carries forward to the logical conclusion that people
are not the owners of their bodies and minds.
That condition is known as slavery.
-Chuck Harris
On Sat, 13 Nov 2021 20:59:30 -0500 "Dave McGuire"
<mcguire@...> wrote:
Oh, I'm very much aware. (not my first BBQ) The problem is that
people in general, but suits in particular, don't understand the
difference between "ownership" and "custodianship".
-Dave
On November 13, 2021 8:16:09 PM "Harvey White"
<madyn@...> wrote:
Suits have a different perspective.
For a suit.....
What is this asset? Does it cost too much to have? Is it
economical for us to get rid of it? If so, throw it away and
claim a tax writeoff.
They're not paid to consider the intrinsic value of that to
anybody. It doesn't contribute to how they are judged, which is
the corporate bottom line.
For a scrapper?
What are the pieces worth? What can I get for these useless
cables I've cut off, they're all copper, aren't they? Manuals?
What's the price of used paper per ton? How much gold can I get
from this?
Hobbiests and engineers?
Best of luck.
Harvey
On 11/13/2021 7:06 PM, Dave McGuire wrote:
As much as those things are worth, someone trashed one? Holy
crap. I'm guessing suits.
-Dave
On November 13, 2021 3:18:27 PM "bandrsn via groups.io"
<bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin
at work, but not before another piece of equipment was dropped
in an sheared off the 400Hz filter button cap, which was lost.
There is about 1/8 inch of the push-button switch post left
inside, behind the front panel, and the switch stills works fine
if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight
off as a sample? 3. Has anyone made a new button from a sample
with either epoxy in a mold or 3D printer? 4. Any other ideas
for button cap repair/replacement I'm missing besides buying
another 339A for parts?
Thanks.
-Bruce A., Santa Barbara --
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
What probe are you using in each case?
What model is the other 'scope?
AC or DC coupling?
The 54615B AC coupled LF 3dB point is 10 Hz and accuracy only 2% so a 10% under-read at 60Hz is not unreasonable.
Generally speaking it is not a good idea to measure the mains with a conventional mains powered 'scope without using specialist probes.
Robert G8RPI.
|
54615B Agilent Scope Amplitude Low When Measuring 120V AC
I have an Agilent 54615B scope that works fine, except, the other day I measured the AC line voltage (119.8V on a meter) and got 318V p-p on both channels.
I used another oscilloscope and confirmed the amplitude to be approximately 340V p-p.
At low voltages such as the probe calibrator of 5V, the scope measures correctly.
It has passed on the self calibration, and, from what I see in the specs, it shouldn't have such a huge error at high voltages.
Does anyone know if this is normal of does something needed adjusting?
|
Re: Replacing missing button cap(s) - HP 339A
On the subject of knobs.
If you have a dead/cracked knob, or access to a lathe, you can get the insert.? Aluminum will work equally well.? They knurled the knob insert.
Print the knob so that the center hole is very slightly smaller than the insert, but only by, say 10 thousandths.
Since the plastic has a relatively low melting point, all you need to do is to orient it properly (or not, you can thread the insert once put in).? Heat the insert gently, and push it in.? You may want a fixture to do this to keep the centers aligned and the shaft perpendicular.
Tek molded the knob around the insert.
Harvey
toggle quoted message
Show quoted text
On 11/14/2021 7:53 AM, tony sayer wrote: In message <[email protected]>, Larry McElhiney via
groups.io <lmcelhiney@...> writes
On Sat, Nov 13, 2021 at 08:16 PM, Harvey White wrote:
If so, throw it away and claim a tax writeoff. tend to depreciate expensive equipment while it is in use?in order
to take the tax write off. ?When it is fully depreciated,
it can only be scrapped or donated, not sold. ?Otherwise, IRS gets
annoyed…
Very ecologically sound that, wonder if it was discussed at COP26?
suspect not!..
Magnus, Thanks for pointing out the right name of the suppliers a few
posts back, I reckon i too their entire supply of QTY 4 off 339A
knobs:).
Whilst on that subject those comprise of a Brass metal core and a
plastic moulding around them. Is it possible to use a 3D printer to go
over the brass metal former to "print" up a complete control knob at
all?...
|
Re: Replacing missing button cap(s) - HP 339A
No, Chuck, I'm not implying that at all. Go pick a fight somewhere else. -Dave On November 14, 2021 8:32:23 AM "Chuck Harris" <cfharris@...> wrote: Are you implying that materials owned by my company,
and hence me, aren't mine?
Communism and socialism are based on that very idea.
The belief that personal ownership does not exist, but
rather people only have stewardship of their "belongings",
carries forward to the logical conclusion that people
are not the owners of their bodies and minds.
That condition is known as slavery.
-Chuck Harris
On Sat, 13 Nov 2021 20:59:30 -0500 "Dave McGuire"
<mcguire@...> wrote:
Oh, I'm very much aware. (not my first BBQ) The problem is that
people in general, but suits in particular, don't understand the
difference between "ownership" and "custodianship".
-Dave
On November 13, 2021 8:16:09 PM "Harvey White"
<madyn@...> wrote:
Suits have a different perspective.
For a suit.....
What is this asset? Does it cost too much to have? Is it
economical for us to get rid of it? If so, throw it away and claim
a tax writeoff.
They're not paid to consider the intrinsic value of that to
anybody. It doesn't contribute to how they are judged, which is
the corporate bottom line.
For a scrapper?
What are the pieces worth? What can I get for these useless cables
I've cut off, they're all copper, aren't they? Manuals? What's the
price of used paper per ton? How much gold can I get from this?
Hobbiests and engineers?
Best of luck.
Harvey
On 11/13/2021 7:06 PM, Dave McGuire wrote:
As much as those things are worth, someone trashed one? Holy
crap. I'm guessing suits.
-Dave
On November 13, 2021 3:18:27 PM "bandrsn via groups.io"
<bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin
at work, but not before another piece of equipment was dropped in
an sheared off the 400Hz filter button cap, which was lost.
There is about 1/8 inch of the push-button switch post left
inside, behind the front panel, and the switch stills works fine
if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off
as a sample? 3. Has anyone made a new button from a sample with
either epoxy in a mold or 3D printer? 4. Any other ideas for
button cap repair/replacement I'm missing besides buying another
339A for parts?
Thanks.
-Bruce A., Santa Barbara --
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
-- Dave McGuire, AK4HZ New Kensington, PA
|
Re: Replacing missing button cap(s) - HP 339A
Are you implying that materials owned by my company, and hence me, aren't mine? Communism and socialism are based on that very idea. The belief that personal ownership does not exist, but rather people only have stewardship of their "belongings", carries forward to the logical conclusion that people are not the owners of their bodies and minds. That condition is known as slavery. -Chuck Harris On Sat, 13 Nov 2021 20:59:30 -0500 "Dave McGuire" <mcguire@...> wrote: Oh, I'm very much aware. (not my first BBQ) The problem is that
people in general, but suits in particular, don't understand the
difference between "ownership" and "custodianship".
-Dave
On November 13, 2021 8:16:09 PM "Harvey White"
<madyn@...> wrote:
Suits have a different perspective.
For a suit.....
What is this asset? Does it cost too much to have? Is it
economical for us to get rid of it? If so, throw it away and claim
a tax writeoff.
They're not paid to consider the intrinsic value of that to
anybody. It doesn't contribute to how they are judged, which is
the corporate bottom line.
For a scrapper?
What are the pieces worth? What can I get for these useless cables
I've cut off, they're all copper, aren't they? Manuals? What's the
price of used paper per ton? How much gold can I get from this?
Hobbiests and engineers?
Best of luck.
Harvey
On 11/13/2021 7:06 PM, Dave McGuire wrote:
As much as those things are worth, someone trashed one? Holy
crap. I'm guessing suits.
-Dave
On November 13, 2021 3:18:27 PM "bandrsn via groups.io"
<bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin
at work, but not before another piece of equipment was dropped in
an sheared off the 400Hz filter button cap, which was lost.
There is about 1/8 inch of the push-button switch post left
inside, behind the front panel, and the switch stills works fine
if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off
as a sample? 3. Has anyone made a new button from a sample with
either epoxy in a mold or 3D printer? 4. Any other ideas for
button cap repair/replacement I'm missing besides buying another
339A for parts?
Thanks.
-Bruce A., Santa Barbara --
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Re: Replacing missing button cap(s) - HP 339A
Of course it can be sold, but after it is depreciated, anything you get for it is income, and as such subject to taxes of all sorts. Remember, companies sell scrapped depreciated equipment all of the time. The big question is does the company want to go to the effort to enter the depreciated item into its books as inventory, and to process the sale. Any sale to an individual will (depending on the state) trigger a sales tax... And may require the company to get a sales license, and a sales tax license. B-to-B sales need neither in most states. -Chuck Harris On Sat, 13 Nov 2021 18:38:33 -0800 "Larry McElhiney via groups.io" <lmcelhiney@...> wrote: On Sat, Nov 13, 2021 at 08:16 PM, Harvey White wrote:
If so, throw it away and claim a tax writeoff.
Corporations tend to depreciate expensive equipment while it is in
use?in order to take the tax write off. ?When it is fully
depreciated, it can only be scrapped or donated, not sold.
?Otherwise, IRS gets annoyed¡
Larry
AC9OX
|
Re: Replacing missing button cap(s) - HP 339A
In message < [email protected]>, Larry McElhiney via groups.io <lmcelhiney@...> writes On Sat, Nov 13, 2021 at 08:16 PM, Harvey White wrote:
If so, throw it away and claim a tax writeoff.? tend to depreciate expensive equipment while it is in use?in order
to take the tax write off. ?When it is fully depreciated,?
it can only be scrapped or donated, not sold. ?Otherwise, IRS gets
annoyed…
Very ecologically sound that, wonder if it was discussed at COP26? suspect not!.. Magnus, Thanks for pointing out the right name of the suppliers a few posts back, I reckon i too their entire supply of QTY 4 off 339A knobs:). Whilst on that subject those comprise of a Brass metal core and a plastic moulding around them. Is it possible to use a 3D printer to go over the brass metal former to "print" up a complete control knob at all?... -- Tony Sayer
|
Re: 8341A *restoration adventure*
Hi Bruce
Yes, I have the 8341A operating manual and the 8340A's four manuals w/ good scans from KO4BB website. Unfortunately, I cannot find the service volumes for the 8341A itself, but the 8340A's are very similar, hope.
The PRESET;SHIFT;MANUAL and the PRESET;SHIFT;EXT checks shows no faults at all, no one is blinking. No red fault led in the ALC board is on, also the loops are locked. That's weird, maybe only a calibration is needed to fix the problem.
What you mean when you said 'do a PEAK'? SHIFT + PEAK? or PEAK only? I do the last and power don't rise up a bit.
On band 0, non readable (low) at 10 MHz, -17 dBm @ 1 GHz, -14.3 dBm @ 2.1 GHz
On band 1, + 5.4 dBm @ 2.3 GHz, +8.9 dBm @ 5 GHz, +8 dBm @ 6.9 GHz
On band 2, -11.7 dBm @ 7 GHz, -7 dBM @ 10 GHz, +4.2 dBm @ 13 GHz
On band 3,very low (no readings on both meters) at 13,5 GHz, -11 dBM @ 15 GHz, -8.5 dBm @ 18 GHz
The only low but reasonable readings are on band 1, the others are very low.
Regards,
R.
|
Re: Replacing missing button cap(s) - HP 339A
On Sat, Nov 13, 2021 at 08:16 PM, Harvey White wrote:
If so, throw it away and claim a tax writeoff.?
Corporations tend to depreciate expensive equipment while it is in use?in order to take the tax write off. ?When it is fully depreciated,? it can only be scrapped or donated, not sold. ?Otherwise, IRS gets annoyed¡ Larry AC9OX
|
Re: Replacing missing button cap(s) - HP 339A
You are quite lucky.? Look at the documentation on the scope, and
do not run it at high intensity because of the (relatively)
limited lifetime of the Microchannel CRT.?
While there's protective circuitry to help the CRT, being
conservative is not a bad idea.? I don't normally use mine, using
a 7904 with the same plugins.? If I need it, though, it's there.
Harvey
On 11/13/2021 8:56 PM, bandrsn via
groups.io wrote:
toggle quoted message
Show quoted text
I think I have an offer for a button - thanks guys.
Continuing the e-waste saga ....
About two weeks ago, my current company was getting ready to move
to new, larger quarters, and management decided to get rid of
anything relatively old.
This happened to include a mint condition Tektronix 7104 with 2x
7A29, 7B15, 7B10 plugins.? I saw it sitting forlornly next to the
large dumpster and after double-checking on its fate, I decided to
relieve the trash haulers the effort of hoisting it up and into
oblivion.? I later found the FET probes in their cases at the
bottom of another pile.
Took it home and dusted it off, cleaned it up to like-new
condition, and fired it up.? Works perfectly with a bright trace
and no burn in.
I've since found out that this model was the fastest analog scope
that Tektronix ever made, if my history is correct.
Displays very cleanly and solidly triggers past 1.3 GHz.
Go figure.
The moral - keep your eyes open when you hear of a company move or
its cal lab closing down and everything there pre-1991 is suddenly
"worthless".
Cheers,
Bruce A., Santa Barbara
|
Re: Replacing missing button cap(s) - HP 339A
Oh, I'm very much aware. (not my first BBQ) The problem is that people in general, but suits in particular, don't understand the difference between "ownership" and "custodianship". -Dave On November 13, 2021 8:16:09 PM "Harvey White" <madyn@...> wrote: Suits have a different perspective.
For a suit.....
What is this asset? Does it cost too much to have? Is it economical
for us to get rid of it? If so, throw it away and claim a tax writeoff.
They're not paid to consider the intrinsic value of that to anybody. It
doesn't contribute to how they are judged, which is the corporate bottom
line.
For a scrapper?
What are the pieces worth? What can I get for these useless cables I've
cut off, they're all copper, aren't they? Manuals? What's the price of
used paper per ton? How much gold can I get from this?
Hobbiests and engineers?
Best of luck.
Harvey
On 11/13/2021 7:06 PM, Dave McGuire wrote:
As much as those things are worth, someone trashed one? Holy crap. I'm guessing suits.
-Dave
On November 13, 2021 3:18:27 PM "bandrsn via groups.io" <bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin at work, but not before another piece of equipment was dropped in an sheared off the 400Hz filter button cap, which was lost. There is about 1/8 inch of the push-button switch post left inside, behind the front panel, and the switch stills works fine if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off as a sample?
3. Has anyone made a new button from a sample with either epoxy in a mold or 3D printer?
4. Any other ideas for button cap repair/replacement I'm missing besides buying another 339A for parts?
Thanks.
-Bruce A., Santa Barbara --
Dave McGuire, AK4HZ
New Kensington, PA
-- Dave McGuire, AK4HZ New Kensington, PA
|
Re: Replacing missing button cap(s) - HP 339A
I think I have an offer for a button - thanks guys.
Continuing the e-waste saga ....
About two weeks ago, my current company was getting ready to move to new, larger quarters, and management decided to get rid of anything relatively old.
This happened to include a mint condition Tektronix 7104 with 2x 7A29, 7B15, 7B10 plugins.? I saw it sitting forlornly next to the large dumpster and after double-checking on its fate, I decided to relieve the trash haulers the effort of hoisting it up and into oblivion.? I later found the FET probes in their cases at the bottom of another pile.
Took it home and dusted it off, cleaned it up to like-new condition, and fired it up.? Works perfectly with a bright trace and no burn in.
I've since found out that this model was the fastest analog scope that Tektronix ever made, if my history is correct.
Displays very cleanly and solidly triggers past 1.3 GHz.
Go figure.
The moral - keep your eyes open when you hear of a company move or its cal lab closing down and everything there pre-1991 is suddenly "worthless".
Cheers,
Bruce A., Santa Barbara
|
Re: Replacing missing button cap(s) - HP 339A
Suits have a different perspective.
For a suit.....
What is this asset?? Does it cost too much to have?? Is it economical for us to get rid of it?? If so, throw it away and claim a tax writeoff.
They're not paid to consider the intrinsic value of that to anybody.? It doesn't contribute to how they are judged, which is the corporate bottom line.
For a scrapper?
What are the pieces worth?? What can I get for these useless cables I've cut off, they're all copper, aren't they?? Manuals? What's the price of used paper per ton?? How much gold can I get from this?
Hobbiests and engineers?
Best of luck.
Harvey
toggle quoted message
Show quoted text
On 11/13/2021 7:06 PM, Dave McGuire wrote: As much as those things are worth, someone trashed one? Holy crap. I'm guessing suits.
-Dave
On November 13, 2021 3:18:27 PM "bandrsn via groups.io" <bandrsn@...> wrote:
I rescued a nice HP 339A distortion analyzer from an e-waste bin at work, but not before another piece of equipment was dropped in an sheared off the 400Hz filter button cap, which was lost. There is about 1/8 inch of the push-button switch post left inside, behind the front panel, and the switch stills works fine if poked with a stick, but looks bad.
Questions:
1. Is there any source for the grey cap nowadays?
2. Could a remaining button cap next to it be pulled straight off as a sample?
3. Has anyone made a new button from a sample with either epoxy in a mold or 3D printer?
4. Any other ideas for button cap repair/replacement I'm missing besides buying another 339A for parts?
Thanks.
-Bruce A., Santa Barbara
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Dave McGuire
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