|
I recently cleared out a couple of storage garages and much to my surprise found an -hp- 130A scope. I don't remember buying it or ever using it. Perhaps given to me by someone. I cleaned it up and it works! Probably needs more cleaning and of course an alignment. Full of bumble bee caps. I am heat running it on a Variac both to let the electrolytic caps reform (if they are going to) and to see if it blows up:-) I can use the thing. It has direct connections to the deflection plates so can be used for monitoring a transmitter output. I found an instruction book at the -hp- archive site. From what I can see in old catalogs -hp- didn't make these for long. I used to use a 130C for doing audio work, it was a good scope once it settled down (a few hours and it was stable). While it has a model number in the same series there is a world of difference between the A and the C. I wonder if anyone has any memories of this thing or advice in getting it to work at a practical level.
--
Richard Knoppow
dickburk@...
WB6KBL
|
I have a 132A, which is a dual-beam scope, the only one HP ever made, basically two 130s in one box. Mine required only a few new tubes and it was good. Clean it up and make sure all the edge connectors and wire leads are bright and shiny.
Jeremy
On Mon, Dec 3, 2018 at 1:43 PM Richard Knoppow < dickburk@...> wrote: ? ? I recently cleared out a couple of storage garages and much
to my surprise found an -hp- 130A scope. I don't remember buying
it or ever using it. Perhaps given to me by someone. I cleaned it
up and it works!? Probably needs more cleaning and of course an
alignment. Full of bumble bee caps. I am heat running it on a
Variac both to let the electrolytic caps reform (if they are
going to) and to see if it blows up:-)? I can use the thing. It
has direct connections to the deflection plates so can be used
for monitoring a transmitter output. I found an instruction book
at the -hp- archive site. From what I can see in old catalogs
-hp- didn't make these for long. I used to use a 130C for doing
audio work, it was a good scope once it settled down (a few hours
and it was stable). While it has a model number in the same
series there is a world of difference between the A and the C. I
wonder if anyone has any memories of this thing or advice in
getting it to work at a practical level.
--
Richard Knoppow
dickburk@...
WB6KBL
|
No edge connectors in it, too old. I do have a problem, after its been running for a while, say fifteen minutes, the trace fades out. Turn it off and let it cool and the trace comes back. Time to measure voltages. I just really started on it. Cleaned all the switches and pots and will do the tube pins and sockets.
Its a curious scope; made in the transition between when scopes were really just indicators and the time when everything was calibrated. This one is calibrated. I am not sure who began that but suspect Tek. My understanding is that -hp- was reluctant to make scopes because they did not want to make just me-too items. However, they would up making some very good instruments. My biggest puzzle about this one is that I have no memory of how I came by it. I think someone must have given it to me long ago.
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On 12/3/2018 5:42 PM, Jeremy Nichols wrote: I have a 132A, which is a dual-beam scope, the only one HP ever made, basically two 130s in one box. Mine required only a few new tubes and it was good. Clean it up and make sure all the edge connectors and wire leads are bright and shiny.
Jeremy
--
Richard Knoppow
dickburk@...
WB6KBL
|
Trace fade after it gets really warm? sounds like the HV transformer problem which plagues many of the same vintage Tektronix scopes..FWIW... I would at least start looking in HV circuits anyway
Dave
manuals@...
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On 12/3/2018 8:58 PM, Richard Knoppow wrote: No edge connectors in it, too old. I do have a problem, after its been running for a while, say fifteen minutes, the trace fades out. Turn it off and let it cool and the trace comes back. Time to measure voltages. I just really started on it. Cleaned all the switches and pots and will do the tube pins and sockets.
??? Its a curious scope; made in the transition between when scopes were really just indicators and the time when everything was calibrated. This one is calibrated. I am not sure who began that but suspect Tek. My understanding is that -hp- was reluctant to make scopes because they did not want to make just me-too items. However, they would up making some very good instruments. My biggest puzzle about this one is that I have no memory of how I came by it. I think someone must have given it to me long ago.
On 12/3/2018 5:42 PM, Jeremy Nichols wrote:
I have a 132A, which is a dual-beam scope, the only one HP ever made, basically two 130s in one box. Mine required only a few new tubes and it was good. Clean it up and make sure all the edge connectors and wire leads are bright and shiny.
Jeremy
--
Dave
Manuals@...
www.ArtekManuals.com
|
After some inspection I think the filter caps are bad. This thing has been in storage for who knows how long. I just ran it for more than fifteen minutes and it did not fade. So at some point I will test the caps and probably replace them all. My other scope, a Tek has a serious problem that I am unable to track to its source. It helps to have a working scope to trouble shoot another.
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On 12/3/2018 6:13 PM, Artekmedia wrote: Trace fade after it gets really warm? sounds like the HV transformer problem which plagues many of the same vintage Tektronix scopes..FWIW... I would at least start looking in HV circuits anyway
Dave
manuals@...
--
Richard Knoppow
dickburk@...
WB6KBL
|
From what I heard around the factory HP never put a lot of effort into scopes because Tek had their very stable triggering circuit. ?
To bring back memories of folks who had fun doing electronics, look through your Tek scope schematics (545 if I remember right) and did the skier going down the lines from plate to grid in the multi-vibrators. Regards, ? Stephen Hanselman Datagate Systems, LLC 3107 North Deer Run Road #24 Carson City, Nevada, 89701 (775) 882-5117?office (775) 720-6020?mobile s.hanselman@...
a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments.
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On Dec 3, 2018, at 18:13, Artekmedia < manuals@...> wrote: Trace fade after it gets really warm? sounds like the HV transformer problem which plagues many of the same vintage Tektronix scopes..FWIW... I would at least start looking in HV circuits anywayDavemanuals@...On 12/3/2018 8:58 PM, Richard Knoppow wrote:No edge connectors in it, too old. I do have a problem, after its been running for a while, say fifteen minutes, the trace fades out. Turn it off and let it cool and the trace comes back. Time to measure voltages. I just really started on it. Cleaned all the switches and pots and will do the tube pins and sockets.
??? Its a curious scope; made in the transition between when scopes were really just indicators and the time when everything was calibrated. This one is calibrated. I am not sure who began that but suspect Tek. My understanding is that -hp- was reluctant to make scopes because they did not want to make just me-too items. However, they would up making some very good instruments. My biggest puzzle about this one is that I have no memory of how I came by it. I think someone must have given it to me long ago.
On 12/3/2018 5:42 PM, Jeremy Nichols wrote:
I have a 132A, which is a dual-beam scope, the only one HP ever made, basically two 130s in one box. Mine required only a few new tubes and it was good. Clean it up and make sure all the edge connectors and wire leads are bright and shiny.
Jeremy
-- DaveManuals@...
|
Well, that is my impression also. I used -hp- scopes because its what we had but always thought the triggers left something to be desired.
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Show quoted text
On 12/3/2018 6:50 PM, Stephen Hanselman wrote: From what I heard around the factory HP never put a lot of effort into scopes because Tek had their very stable triggering circuit.
To bring back memories of folks who had fun doing electronics, look through your Tek scope schematics (545 if I remember right) and did the skier going down the lines from plate to grid in the multi-vibrators.
Regards,
Stephen Hanselman
Datagate Systems, LLC
3107 North Deer Run Road #24 <x-apple-data-detectors://0/0>
Carson City, Nevada, 89701 <x-apple-data-detectors://0/0>
(775) 882-5117 <tel:(775)%20882-5117>?office
(775) 720-6020 <tel:(775)%20720-6020>?mobile
s.hanselman@... <mailto:s.hanselman@...>
www.datagatesystems.com <>
--
Richard Knoppow
dickburk@...
WB6KBL
|
Richard, you and I are meaning different things by "edge connectors." I was thinking of individual wires attached to pins or little slots at the edges of the pc boards. (Yes, "pins" aren't "edge connectors; I was being lazy.) Perhaps the 130 is too old; I've never had one apart.?
HP did not want to compete with Tek in the scope field but customers kept asking and finally they decided they could get into the low frequency end of things where Tek wasn't as active.?
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow < dickburk@...> wrote: ? ?Well, that is my impression also. I used -hp- scopes because
its what we had but always thought the triggers left something to
be desired.
|
Hi
what date are we talking about as in 1970 the
140 series went to 20 mhz? real time and 12 ghz sampling also available was
the 183 with a real time display of 500 Mhz
?
?
Richard, you and I are meaning different things by "edge
connectors." I was thinking of individual wires attached to pins or little
slots at the edges of the pc boards. (Yes, "pins" aren't "edge
connectors; I was being lazy.) Perhaps the 130 is too old; I've never had one
apart.?
HP did not want to compete with Tek in the scope field but customers
kept asking and finally they decided they could get into the low frequency end
of things where Tek wasn't as active.?
toggle quoted message
Show quoted text
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow <dickburk@...> wrote:
? ?Well, that
is my impression also. I used -hp- scopes because
its what we had but always thought the triggers left something to
be desired.
--
No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15883 - Release Date: 08/14/18
Internal Virus Database is out of date.
|
To bring back memories of folks who had fun doing electronics, look through your Tek scope schematics (545 if I remember right) and did the skier going down the lines from plate to grid in the multi-vibrators. And the 545A has a race car in the horiz amp. And the 2B67 time base plug in has a guy on a toboggan. I have an HP130BR. Pete
|
I realized what you meant when I looked at the scope. I will remove and clean the connections. Even if not the cause of the main problem they may be causing instability.
I heard the story of how -hp- got into the scope business years ago but I think I was hearing something about forth hand. I think perhaps they were glad when they needed display devices for spectrum and network analyzers.
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On 12/3/2018 7:15 PM, Jeremy Nichols wrote: Richard, you and I are meaning different things by "edge connectors." I was thinking of individual wires attached to pins or little slots at the edges of the pc boards. (Yes, "pins" aren't "edge connectors; I was being lazy.) Perhaps the 130 is too old; I've never had one apart.
HP did not want to compete with Tek in the scope field but customers kept asking and finally they decided they could get into the low frequency end of things where Tek wasn't as active.
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow <dickburk@... <mailto:dickburk@...>> wrote:
? ?Well, that is my impression also. I used -hp- scopes because
its what we had but always thought the triggers left
something to
be desired.
--
4.
--
Richard Knoppow
dickburk@...
WB6KBL
|
Well, the instruction book at BAMA is dated 1958 and the 130A was considered obsolete when I started with -hp- around the early 1960s.
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On 12/3/2018 7:30 PM, Paul Bicknell wrote: Hi
what date are we talking about as in 1970 the 140 series went to 20 mhz? real time and 12 ghz sampling also available was the 183 with a real time display of 500 Mhz
-----------------------------------------------------------------
*From:*[email protected] [mailto:[email protected]] *On Behalf Of *Jeremy Nichols
*Sent:* 04 December 2018 03:15
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A
Richard, you and I are meaning different things by "edge connectors." I was thinking of individual wires attached to pins or little slots at the edges of the pc boards. (Yes, "pins" aren't "edge connectors; I was being lazy.) Perhaps the 130 is too old; I've never had one apart.
HP did not want to compete with Tek in the scope field but customers kept asking and finally they decided they could get into the low frequency end of things where Tek wasn't as active.
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow <dickburk@... <mailto:dickburk@...>> wrote:
? ?Well, that is my impression also. I used -hp- scopes because
its what we had but always thought the triggers left
something to
be desired.
--
4.
No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 2016.0.8048 / Virus Database: 4793/15883 - Release Date: 08/14/18
Internal Virus Database is out of date.
--
Richard Knoppow
dickburk@...
WB6KBL
|
Before the 140 series, HP scopes were limited to about 500 KHz. Once they had got their feet wet, the marketing people of course had to go looking for other opportunities. The 140 series was limited to 20 MHz but was greatly expanded by sampling technology, which was enabled by solid-state technology in the 1970s, as you noted.
On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell < paul@...> wrote:
Hi
what date are we talking about as in 1970 the
140 series went to 20 mhz? real time and 12 ghz sampling also available was
the 183 with a real time display of 500 Mhz
?
?
Richard, you and I are meaning different things by "edge
connectors." I was thinking of individual wires attached to pins or little
slots at the edges of the pc boards. (Yes, "pins" aren't "edge
connectors; I was being lazy.) Perhaps the 130 is too old; I've never had one
apart.?
HP did not want to compete with Tek in the scope field but customers
kept asking and finally they decided they could get into the low frequency end
of things where Tek wasn't as active.?
?
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow <dickburk@...> wrote:
? ?Well, that
is my impression also. I used -hp- scopes because
its what we had but always thought the triggers left something to
be desired.
--
No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15883 - Release Date: 08/14/18
Internal Virus Database is out of date.
|
The 140A and 175A came out at about the same time. Articles in the -hp- Journal were around 1963. The 175 was a 50 Mhz scope. Weighed a ton. Not bad but I suspect not quite up to the Tek scopes of the time. Both featured the internal graticule and acceleration mesh CRTs. I think you are right about the limit on previous models.
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Show quoted text
On 12/3/2018 9:03 PM, Jeremy Nichols wrote: Before the 140 series, HP scopes were limited to about 500 KHz. Once they had got their feet wet, the marketing people of course had to go looking for other opportunities. The 140 series was limited to 20 MHz but was greatly expanded by sampling technology, which was enabled by solid-state technology in the 1970s, as you noted.
On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell <paul@... <mailto:paul@...>> wrote:
__
Hi ____
what date are we talking about as in 1970 the 140 series went
to 20 mhz? real time and 12 ghz sampling also available was
the 183 with a real time display of 500 Mhz____
__ __
-----------------------------------------------------------------
*From:*[email protected]
<mailto:[email protected]>__
[mailto:[email protected]
<mailto:[email protected]>__] *On
Behalf Of *Jeremy Nichols
*Sent:* 04 December 2018 03:15
*To:* [email protected]
<mailto:[email protected]>__
*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A____
__ __
Richard, you and I are meaning different things by "edge
connectors." I was thinking of individual wires attached to
pins or little slots at the edges of the pc boards. (Yes,
"pins" aren't "edge connectors; I was being lazy.) Perhaps
the 130 is too old; I've never had one apart. ____
__ __
HP did not want to compete with Tek in the scope field but
customers kept asking and finally they decided they could get
into the low frequency end of things where Tek wasn't as
active. ____
__ __
__ __
On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow
<dickburk@... <mailto:dickburk@...>>
wrote:____
? ?Well, that is my impression also. I used -hp- scopes
because
its what we had but always thought the triggers left
something to
be desired.
____
-- ____
4.____
__
No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 2016.0.8048 / Virus Database: 4793/15883 - Release
Date: 08/14/18
Internal Virus Database is out of date.____
--
4.
--
Richard Knoppow
dickburk@...
WB6KBL
|
Yeah I have a 1727A 275 MHz 'scope I don't know what to do with.? If anyone wants to trade something for it, let me know.
Bob
On Monday, December 3, 2018, 9:29:33 PM PST, Richard Knoppow <dickburk@...> wrote:
? ? The 140A and 175A came out at about the same time. Articles
in the -hp- Journal were around 1963.? The 175 was a 50 Mhz
scope. Weighed a ton. Not bad but I suspect not quite up to the
Tek scopes of the time. Both featured the internal graticule? and
acceleration mesh CRTs. I think you are right about the limit on
previous models.
On 12/3/2018 9:03 PM, Jeremy Nichols wrote: > Before the 140 series, HP scopes were limited to about 500 KHz. > Once they had got their feet wet, the marketing people of course > had to go looking for other opportunities. The 140 series was > limited to 20 MHz but was greatly expanded by sampling > technology, which was enabled by solid-state technology in the > 1970s, as you noted. > > > On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell > < paul@... <mailto: paul@...>> wrote: > >? ? __ > >? ? Hi ____ > >? ? what date are we talking about as in 1970 the 140 series went >? ? to 20 mhz? real time and 12 ghz sampling also available was >? ? the 183 with a real time display of 500 Mhz____ > >? ? __ __ > >? ? ----------------------------------------------------------------- > >? ? *From:* [email protected]>? ? <mailto: [email protected]>__ >? ? [mailto: [email protected]>? ? <mailto: [email protected]>__] *On >? ? Behalf Of *Jeremy Nichols >? ? *Sent:* 04 December 2018 03:15 >? ? *To:* [email protected]>? ? <mailto: [email protected]>__ >? ? *Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A____ > >? ? __ __ > >? ? Richard, you and I are meaning different things by "edge >? ? connectors." I was thinking of individual wires attached to >? ? pins or little slots at the edges of the pc boards. (Yes, >? ? "pins" aren't "edge connectors; I was being lazy.) Perhaps >? ? the 130 is too old; I've never had one apart. ____ > >? ? __ __ > >? ? HP did not want to compete with Tek in the scope field but >? ? customers kept asking and finally they decided they could get >? ? into the low frequency end of things where Tek wasn't as >? ? active. ____ > >? ? __ __ > >? ? __ __ > >? ? On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow >? ? < dickburk@... <mailto: dickburk@...>> >? ? wrote:____ > >? ? ? ? ? ? ?Well, that is my impression also. I used -hp- scopes >? ? ? ? because >? ? ? ? its what we had but always thought the triggers left >? ? ? ? something to >? ? ? ? be desired. > >? ? ? ? ____ > >? ? -- ____ > >? ? 4.____ > >? ? __ > >? ? No virus found in this message. >? ? Checked by AVG - www.avg.com <> >? ? Version: 2016.0.8048 / Virus Database: 4793/15883 - Release >? ? Date: 08/14/18 >? ? Internal Virus Database is out of date.____ > > -- > 4. > -- Richard Knoppow dickburk@...WB6KBL
|
You are correct. I have a 175A and it does indeed weigh a ton. Plug-Ins are hard to find.?
My favorite member of the 140 family is the 143 because of its 8x10 inch CRT. I have one for sale but shipping will be a bitch—getting it to a buyer in one piece will be challenging.?
On Mon, Dec 3, 2018 at 9:29 PM Richard Knoppow < dickburk@...> wrote: ? ? The 140A and 175A came out at about the same time. Articles
in the -hp- Journal were around 1963.? The 175 was a 50 Mhz
scope. Weighed a ton. Not bad but I suspect not quite up to the
Tek scopes of the time. Both featured the internal graticule? and
acceleration mesh CRTs. I think you are right about the limit on
previous models.
On 12/3/2018 9:03 PM, Jeremy Nichols wrote:
> Before the 140 series, HP scopes were limited to about 500 KHz.
> Once they had got their feet wet, the marketing people of course
> had to go looking for other opportunities. The 140 series was
> limited to 20 MHz but was greatly expanded by sampling
> technology, which was enabled by solid-state technology in the
> 1970s, as you noted.
>
>
> On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell
> <paul@... <mailto:paul@...>> wrote:
>
>? ? ?__
>
>? ? ?Hi ____
>
>? ? ?what date are we talking about as in 1970 the 140 series went
>? ? ?to 20 mhz? real time and 12 ghz sampling also available was
>? ? ?the 183 with a real time display of 500 Mhz____
>
>? ? ?__ __
>
>? ? ?-----------------------------------------------------------------
>
>? ? ?*From:*__[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?[mailto:__[email protected]
>? ? ?<mailto:[email protected]>__] *On
>? ? ?Behalf Of *Jeremy Nichols
>? ? ?*Sent:* 04 December 2018 03:15
>? ? ?*To:* __[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A____
>
>? ? ?__ __
>
>? ? ?Richard, you and I are meaning different things by "edge
>? ? ?connectors." I was thinking of individual wires attached to
>? ? ?pins or little slots at the edges of the pc boards. (Yes,
>? ? ?"pins" aren't "edge connectors; I was being lazy.) Perhaps
>? ? ?the 130 is too old; I've never had one apart. ____
>
>? ? ?__ __
>
>? ? ?HP did not want to compete with Tek in the scope field but
>? ? ?customers kept asking and finally they decided they could get
>? ? ?into the low frequency end of things where Tek wasn't as
>? ? ?active. ____
>
>? ? ?__ __
>
>? ? ?__ __
>
>? ? ?On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow
>? ? ?<dickburk@... <mailto:dickburk@...>>
>? ? ?wrote:____
>
>? ? ? ? ? ? ?Well, that is my impression also. I used -hp- scopes
>? ? ? ? ?because
>? ? ? ? ?its what we had but always thought the triggers left
>? ? ? ? ?something to
>? ? ? ? ?be desired.
>
>? ? ? ? ?____
>
>? ? ?-- ____
>
>? ? ?4.____
>
>? ? ?__
>
>? ? ?No virus found in this message.
>? ? ?Checked by AVG - <>
>? ? ?Version: 2016.0.8048 / Virus Database: 4793/15883 - Release
>? ? ?Date: 08/14/18
>? ? ?Internal Virus Database is out of date.____
>
> --
> 4.
>
--
Richard Knoppow
dickburk@...
WB6KBL
|
Well, actually, as of 1971 the 140 series did 18GHz (maybe 20GHz if you selected the diodes carefully). ? I can confirm the difficulty of shipping the 143 scopes. I own one that's on at least its second CRT (bits of a past CRT were still rattling around in the bottom when I got it). The seller who sold me mine packed it in a four foot cube of foam and ~3 layers of cardboard. That got it to me in one piece, but I had to unpack it outside the house because it didn't fit in the door:) ? They're definitely worth it if you have the sampling plugins though. A little high maintenance, but a pleasure to use once you tune everything up properly. ? ? You are correct. I have a 175A and it does indeed weigh a ton. Plug-Ins are hard to find.? My favorite member of the 140 family is the 143 because of its 8x10 inch CRT. I have one for sale but shipping will be a bitch—getting it to a buyer in one piece will be challenging.?
toggle quoted message
Show quoted text
On Mon, Dec 3, 2018 at 9:29 PM Richard Knoppow < dickburk@...> wrote: ? ? The 140A and 175A came out at about the same time. Articles
in the -hp- Journal were around 1963.? The 175 was a 50 Mhz
scope. Weighed a ton. Not bad but I suspect not quite up to the
Tek scopes of the time. Both featured the internal graticule? and
acceleration mesh CRTs. I think you are right about the limit on
previous models.
On 12/3/2018 9:03 PM, Jeremy Nichols wrote:
> Before the 140 series, HP scopes were limited to about 500 KHz.
> Once they had got their feet wet, the marketing people of course
> had to go looking for other opportunities. The 140 series was
> limited to 20 MHz but was greatly expanded by sampling
> technology, which was enabled by solid-state technology in the
> 1970s, as you noted.
>
>
> On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell
> <paul@... <mailto:paul@...>> wrote:
>
>? ? ?__
>
>? ? ?Hi ____
>
>? ? ?what date are we talking about as in 1970 the 140 series went
>? ? ?to 20 mhz? real time and 12 ghz sampling also available was
>? ? ?the 183 with a real time display of 500 Mhz____
>
>? ? ?__ __
>
>? ? ?-----------------------------------------------------------------
>
>? ? ?*From:*__[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?[mailto:__[email protected]
>? ? ?<mailto:[email protected]>__] *On
>? ? ?Behalf Of *Jeremy Nichols
>? ? ?*Sent:* 04 December 2018 03:15
>? ? ?*To:* __[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A____
>
>? ? ?__ __
>
>? ? ?Richard, you and I are meaning different things by "edge
>? ? ?connectors." I was thinking of individual wires attached to
>? ? ?pins or little slots at the edges of the pc boards. (Yes,
>? ? ?"pins" aren't "edge connectors; I was being lazy.) Perhaps
>? ? ?the 130 is too old; I've never had one apart. ____
>
>? ? ?__ __
>
>? ? ?HP did not want to compete with Tek in the scope field but
>? ? ?customers kept asking and finally they decided they could get
>? ? ?into the low frequency end of things where Tek wasn't as
>? ? ?active. ____
>
>? ? ?__ __
>
>? ? ?__ __
>
>? ? ?On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow
>? ? ?<dickburk@... <mailto:dickburk@...>>
>? ? ?wrote:____
>
>? ? ? ? ? ? ?Well, that is my impression also. I used -hp- scopes
>? ? ? ? ?because
>? ? ? ? ?its what we had but always thought the triggers left
>? ? ? ? ?something to
>? ? ? ? ?be desired.
>
>? ? ? ? ?____
>
>? ? ?-- ____
>
>? ? ?4.____
>
>? ? ?__
>
>? ? ?No virus found in this message.
>? ? ?Checked by AVG - <>
>? ? ?Version: 2016.0.8048 / Virus Database: 4793/15883 - Release
>? ? ?Date: 08/14/18
>? ? ?Internal Virus Database is out of date.____
>
> --
> 4.
>
--
Richard Knoppow
dickburk@...
WB6KBL
|
I remember that skier! Indeed where I worked, Motorola, we had only Tek scopes, otherwise HP Test and measurement and a lot of stuff built in house for test jigs.
|
I was given a 175A about 15 years ago.? Never really tried to get it working because I have too many Tek scopes that do work.? It sits at the bottom of one of my 19" racks as ballast.
-Dave
From: Jeremy Nichols <jn6wfo@...>
To: [email protected]
Sent: Monday, December 3, 2018 10:07 PM
Subject: Re: [HP-Agilent-Keysight-equipment] HP 130A
You are correct. I have a 175A and it does indeed weigh a ton. Plug-Ins are hard to find.?
My favorite member of the 140 family is the 143 because of its 8x10 inch CRT. I have one for sale but shipping will be a bitch—getting it to a buyer in one piece will be challenging.?
On Mon, Dec 3, 2018 at 9:29 PM Richard Knoppow < dickburk@...> wrote: ? ? The 140A and 175A came out at about the same time. Articles
in the -hp- Journal were around 1963.? The 175 was a 50 Mhz
scope. Weighed a ton. Not bad but I suspect not quite up to the
Tek scopes of the time. Both featured the internal graticule? and
acceleration mesh CRTs. I think you are right about the limit on
previous models.
On 12/3/2018 9:03 PM, Jeremy Nichols wrote:
> Before the 140 series, HP scopes were limited to about 500 KHz.
> Once they had got their feet wet, the marketing people of course
> had to go looking for other opportunities. The 140 series was
> limited to 20 MHz but was greatly expanded by sampling
> technology, which was enabled by solid-state technology in the
> 1970s, as you noted.
>
>
> On Mon, Dec 3, 2018 at 7:36 PM Paul Bicknell
> <paul@... <mailto:paul@...>> wrote:
>
>? ? ?__
>
>? ? ?Hi ____
>
>? ? ?what date are we talking about as in 1970 the 140 series went
>? ? ?to 20 mhz? real time and 12 ghz sampling also available was
>? ? ?the 183 with a real time display of 500 Mhz____
>
>? ? ?__ __
>
>? ? ?-----------------------------------------------------------------
>
>? ? ?*From:*__[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?[mailto:__[email protected]
>? ? ?<mailto:[email protected]>__] *On
>? ? ?Behalf Of *Jeremy Nichols
>? ? ?*Sent:* 04 December 2018 03:15
>? ? ?*To:* __[email protected]
>? ? ?<mailto:[email protected]>__
>? ? ?*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 130A____
>
>? ? ?__ __
>
>? ? ?Richard, you and I are meaning different things by "edge
>? ? ?connectors." I was thinking of individual wires attached to
>? ? ?pins or little slots at the edges of the pc boards. (Yes,
>? ? ?"pins" aren't "edge connectors; I was being lazy.) Perhaps
>? ? ?the 130 is too old; I've never had one apart. ____
>
>? ? ?__ __
>
>? ? ?HP did not want to compete with Tek in the scope field but
>? ? ?customers kept asking and finally they decided they could get
>? ? ?into the low frequency end of things where Tek wasn't as
>? ? ?active. ____
>
>? ? ?__ __
>
>? ? ?__ __
>
>? ? ?On Mon, Dec 3, 2018 at 6:55 PM Richard Knoppow
>? ? ?<dickburk@... <mailto:dickburk@...>>
>? ? ?wrote:____
>
>? ? ? ? ? ? ?Well, that is my impression also. I used -hp- scopes
>? ? ? ? ?because
>? ? ? ? ?its what we had but always thought the triggers left
>? ? ? ? ?something to
>? ? ? ? ?be desired.
>
>? ? ? ? ?____
>
>? ? ?-- ____
>
>? ? ?4.____
>
>? ? ?__
>
>? ? ?No virus found in this message.
>? ? ?Checked by AVG - <>
>? ? ?Version: 2016.0.8048 / Virus Database: 4793/15883 - Release
>? ? ?Date: 08/14/18
>? ? ?Internal Virus Database is out of date.____
>
> --
> 4.
>
--
Richard Knoppow
dickburk@...
WB6KBL
-- 4.
|
Back in the late 70's when working at Tek in the UK, we caused
mayhem it seems when we ordered a replacement for the component
"W101" from the 434 vertical deflection amp schematic, after we
found a part number listed in a manual for it!
Regards.
Dave B.
To bring back memories of folks who had
fun doing electronics, look through your Tek scope schematics (545
if I remember right) and did the skier going down the lines from
plate to grid in the multi-vibrators.
--
Created on and sent from a Unix like PC running and using free and open source software.
::
|
Jeremy Nichols
Paul Bicknell
RFI-EMI-GUY