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  1. HP-Agilent-Keysight-Equipment
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Date
Re: Vintage parts for sale

 

Yes, another scourge of nonsense and low tech form Apple.? But you should be able to download a free viewer plugin for Windoze.? My work laptop views them fine once I installed a driver.


On Fri, Feb 21, 2025 at 11:08?AM Peter Gottlieb via <hpnpilot=[email protected]> wrote:
Microsoft requires you to buy a plugin to easily view them. It’s an Apple format. The free ones are unwieldy to use.?

Peter

On Feb 21, 2025, at 12:04?PM, Heinz-Peter Deutsch via <hpdeutsch=[email protected]> wrote:

? Hi Jurek,

send your pictures in jpg format--> not in HEIC format
nobody can read it.

Peter
============================
Sent from my Phone.?


-------- Original message --------
From: "jerzy przezdziecki via " <jprzezdziecki@...>
Date: 2/21/25 17:52 (GMT+02:00)
Subject: Re: [HP-Agilent-Keysight-equipment] Vintage parts for sale

Hey, here is the link to pictures of parts.,
Keysight U1242B Schematic

 

Does anyone have a schematic for a Keysight U1242B meter?
?
I am trying to troubleshoot an "Aerr" error.
?
Thanks.
Mark
Re: VNA Reference Impedance Renormalization

 

Good catch, Dave!? I'd kind of skimmed over the .pdf and then filed it for future reference myself.

I'd measured some boards probably 10-15 years ago with a 50 ohm VNA and was surprised to get reasonable measurements.? I figured the power distribution network we were looking at would swamp out the 50 ohms of the VNA with near shorts and opens, but it didn't.? Must have been in one of those sweet zones.? In my *spare time* I'll run some resistors on the Advantest VNA in my garage lab (don't hold your breath waiting).

Jim Ford
Laguna Hills, California, USA

On Friday, February 21, 2025 at 04:30:31 AM CST, Dave_G0WBX via groups.io <g8kbvdave@...> wrote:


Hi.

Just me, or is there a bit of an inconsistency on page one of that PDF?

Between the text descriptions and the illustration below, regarding how to measure Low, Medium and High impedance DUT's.?? I think the order of the text descriptions and the illustrations are different.

Also, the first illustration surely is a S11 measurement, not S21.

Yes, No??? If no, why, in detail please.

73.

Dave 'KBV.
Re: Vintage parts for sale

 

开云体育

You can use for free

also batch convert is possible

But he offers only some old russian parts, R, C, Tr

Peter
==========================



Am 21.02.2025 um 18:07 schrieb Peter Gottlieb via groups.io:

Microsoft requires you to buy a plugin to easily view them. It’s an Apple format. The free ones are unwieldy to use.?

Peter
Re: Vintage parts for sale

 

开云体育

Microsoft requires you to buy a plugin to easily view them. It’s an Apple format. The free ones are unwieldy to use.?

Peter

On Feb 21, 2025, at 12:04?PM, Heinz-Peter Deutsch via groups.io <hpdeutsch@...> wrote:

? Hi Jurek,

send your pictures in jpg format--> not in HEIC format
nobody can read it.

Peter
============================
Sent from my Phone.?


-------- Original message --------
From: "jerzy przezdziecki via groups.io" <jprzezdziecki@...>
Date: 2/21/25 17:52 (GMT+02:00)
Subject: Re: [HP-Agilent-Keysight-equipment] Vintage parts for sale

Hey, here is the link to pictures of parts.,
Re: Vintage parts for sale

 

开云体育

Hi Jurek,

send your pictures in jpg format--> not in HEIC format
nobody can read it.

Peter
============================

Sent from my Phone.?


-------- Original message --------
From: "jerzy przezdziecki via groups.io" <jprzezdziecki@...>
Date: 2/21/25 17:52 (GMT+02:00)
Subject: Re: [HP-Agilent-Keysight-equipment] Vintage parts for sale

Hey, here is the link to pictures of parts.,
Re: HP 3403C True RMS Voltmeter display fault

 

Hello,
For Joel:
1. Yes, the blinking +1 indication remains on DC. Actually, it remains +1 on any setting, with or without the converter inside. It does not seem to care.?
2&3. I will report the results.
?
For Jeff:? The clock is actually a good old NE555. This is what HP used but also the solution used by Intersil in the datasheet. I'll check the clock output.?
?
Re: Vintage parts for sale

 

开云体育

In what price??



Sent from my Phone.?


-------- Original message --------
From: "jerzy przezdziecki via groups.io" <jprzezdziecki@...>
Date: 2/21/25 17:52 (GMT+02:00)
Subject: Re: [HP-Agilent-Keysight-equipment] Vintage parts for sale

Hey, here is the link to pictures of parts.,
https://we.tl/t-Bd7cqIsGTG
Let me know what you need.
I prefer to sell all of them.

Best Jurek

?On 21/02/2025, 16:49, "Alexander Huemer via groups.io" <[email protected] <mailto:[email protected]> on behalf of aziD5eeth9fe@... <mailto:[email protected]>> wrote:


Hi!


On Fri, Feb 21, 2025 at 12:51:21PM +0100, jerzy przezdziecki via groups.io wrote:
> I am closing down my father’s long-standing workshop, which
> specialized in tube and radio technology using components available in
> the 1970s and 1980s. There are hundreds of germanium diodes,
> transistors, ceramic tubular capacitors, styroflex capacitors and
> power resistors—both new and desoldered. There’s a large quantity of
> these components. If anyone is interested, I can send photos and a
> detailed description.


Some pictures and a list of items would be appreciated.
I personally could imagine to want a 'grab bag' of a small quantity of
the individual items. You know, 'just in case'.


-Alex
Re: Looking for 54300A operating and service manual

 

开云体育

I'm all set now, thanks again.

Peter


On 2/21/2025 10:17 AM, Peter Brown via groups.io wrote:

Cheers - Is that all you need?
?
?
Re: Vintage parts for sale

jerzy przezdziecki
 

Hey, here is the link to pictures of parts.,

Let me know what you need.
I prefer to sell all of them.

Best Jurek

?On 21/02/2025, 16:49, "Alexander Huemer via groups.io" <[email protected] <mailto:[email protected]> on behalf of aziD5eeth9fe@... <mailto:[email protected]>> wrote:


Hi!


On Fri, Feb 21, 2025 at 12:51:21PM +0100, jerzy przezdziecki via groups.io wrote:
I am closing down my father’s long-standing workshop, which
specialized in tube and radio technology using components available in
the 1970s and 1980s. There are hundreds of germanium diodes,
transistors, ceramic tubular capacitors, styroflex capacitors and
power resistors—both new and desoldered. There’s a large quantity of
these components. If anyone is interested, I can send photos and a
detailed description.

Some pictures and a list of items would be appreciated.
I personally could imagine to want a 'grab bag' of a small quantity of
the individual items. You know, 'just in case'.


-Alex
Re: Vintage parts for sale

 

Hi!

On Fri, Feb 21, 2025 at 12:51:21PM +0100, jerzy przezdziecki via groups.io wrote:
I am closing down my father’s long-standing workshop, which
specialized in tube and radio technology using components available in
the 1970s and 1980s. There are hundreds of germanium diodes,
transistors, ceramic tubular capacitors, styroflex capacitors and
power resistors—both new and desoldered. There’s a large quantity of
these components. If anyone is interested, I can send photos and a
detailed description.
Some pictures and a list of items would be appreciated.
I personally could imagine to want a 'grab bag' of a small quantity of
the individual items. You know, 'just in case'.

-Alex
Re: Looking for 54300A operating and service manual

 

开云体育

Yes!? Thank you, this has exactly what I need!

Peter


On 2/21/2025 10:04 AM, Peter Brown via groups.io wrote:

Take a look at the .pdf file in?
?
Files -? A temporary directory for photographs and help relating to emails and posting? - 54300A
?
This is the schematic for the input card - it may have what you need
?
Peter
Re: Vintage parts for sale

 

according to the O.P.'s other posts: Warsaw Poland.
?
Re: HP 3403C True RMS Voltmeter display fault

 

Actually, if the display is goofy, not counting or "wiggling", maybe the clock oscillator that drives the system or display is not running. Probably a simple oscillator crystal with a pair of gates.
Look around with a scope and see if you have gating action anywhere. Jeff Kruth
Re: Vintage parts for sale

 

Hi Jurek, This sounds interesting for me as I do restore vintage radios and even test equipment - I am in the Netherlands, I would ask where you are located and if you would be able to ship to me here? Best regards, Trevor
Re: Looking for 54300A operating and service manual

 

Hi Peter,
?
The input modules used in the 54300A are also used in the HP 54100A/D scopes. ? You can find the service manual for the scope here:
?
? https://www.keysight.com/us/en/product/54100A/1-ghz-digitizing-oscilloscope.html#resources
?
The scope service manual includes sections on the input modules. ?There isn't schematics of the scope or 54003A module, but there is detailed information on calibration and adjustments of all the input modules including the 54003A. ?Also included is the pinout on the back connector in section 7C (pinout on page 7C-26). ?From left to right looking at the back, the pins are +10V, ID0, Overload, coaxial output, ID1, ID2, and -10V.
?
If this isn't enough, the full service manual including schematics for the 54100A/D scope is available here for $25.50:
?
? http://artekmanuals.com/manuals/hp-manuals/
?
This would provide additional detail on the circuitry that supports the input modules, and who knows, maybe schematics of the modules too since they were included in the above service manual from Keysight.? Or maybe Peter Brown's fiche will show what you need.
?
-mark
?
?
On Fri, Feb 21, 2025 at 09:32 AM, Peter Gottlieb wrote:

I am specifically looking to use the 54003A input modules standalone so am looking for the pinout.

There are 6 pins plus a 50 ohm coaxial output.? As there is a LM308 in there next to the hybrid I could identify the +V and -V pins, know two are NC and one a ground, so just wonder:

1)? What is the other pin

2)? What are the + and - voltages? (12? 15? or what?)

That's about it.

Peter

?

On 2/21/2025 9:14 AM, Peter Brown via groups.io wrote:
I think that I have it on fiche
?
Probe multiplexer Op Svc October 1985 rev 1
Paper part number 54300-90901
Fiche part number 54300-90801
Serial PFX 2510A
2 fiches, includes block diagrams and schematics
?
Any particular part of it?
?
Peter
Re: Looking for 54300A operating and service manual

 

Cheers - Is that all you need?
?
?
Re: Service manual scan post processing

 

Whilst looking through the service manual for the Canon MS-800 I noticed that it listed a 128Mb SODIM as being optional and necessary for the greyscale option?
?
My machine did not have this fitted so I popped a PC66 stick in and hey presto the software at the PC end of the system now reports that 16 / 256 level grayscale is now available as a scan parameter (previously only black and white).? It also appears to have opened up a contrast option on the PC end.
?
Great that all the software appears to be resident on the hardware by default.?
?
I wonder how much they charged for the grayscale option back in the day?
?
Peter
Re: Looking for 54300A operating and service manual

 

Your stash must be a gold mine. You're doing a great service, thanks!


On Fri, Feb 21, 2025, 15:14 Peter Brown via <peter=[email protected]> wrote:
I think that I have it on fiche
?
Probe multiplexer Op Svc October 1985 rev 1
Paper part number 54300-90901
Fiche part number 54300-90801
Serial PFX 2510A
2 fiches, includes block diagrams and schematics
?
Any particular part of it?
?
Peter
Re: Looking for 54300A operating and service manual

 

Apologies, I dropped the right hand end of the schematic off
?
I will rescan and post the corrected version later
?
Peter
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