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  1. HP-Agilent-Keysight-Equipment
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HP 312A wave analyser

 

I have recently acquired an old HP 312A wave analyser, which has been sitting around in a lab with little use. I would like to know about the photo conductor block ( P/N 1990-0009 & 5212-B3H, that drives the Borroughs B5991 nixie tubes -130V rail.?
The photo conductors are themselves driven by NE-2E4 neons in a transistor flip flop circuit. If the photo conductor fails, is it germainiam, silicone, or selenium? or what device could be substituted for a potential fault? Could I use a opto- coupler maybe? Or an IR receiver sensor?
? ? ? ? ? ? ? Regards Brad
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

On Wed, Mar 15, 2023 at 06:05 AM, Dave_G0WBX wrote:
Set the PC up so that RealTerm just dumps what comes in to the screen.? 9600, n, 8, 1 should be a good start.
Hi,

I just tried the COPY button and I received a bunch of characters on my RealTerm . So it seems you are right Dave maybe option 023 is only for outgoing messages and no option for remote controlling the device. Do you know if i can install option 043? Is there a card that i can plug in and upgrade the scope for remote controlling??

Thanks,
Candrian
Re: Looking for a feedthrough capacitor

 

¿ªÔÆÌåÓý

How much room on the 'other' side from the 90 deg bend?

Would something like this:



be made to fit with a bit of a spacer under the hexagonal end? Not cheap however at 3.62 quid per nF!

On 15/03/2023 15:25, Martin via groups.io wrote:

Hi all,

I'm looking for a replacement for a shorted feedthrough capacitor for my SNA1 Wandel & Goltermann analyzer. It seems special in that it is very thin on the interiours side, where the bended wire is. I cannot find anything like that on the internt. Below some pics (metric scale!).

The parts list says 8c20 / 0855-0020.0008 / C-Keramik / ZZMZ / 4N7 / 20/80 / 63V.
So its a 4n7 ceramic capacitor with 63V rating. In the SNA this capacitor is handling a 12V supply line.

Does anyone have a similar item in his drawer?

thanks
Martin

Attachments:
Re: Looking for a feedthrough capacitor

 

You probably have to enter it on the german site, I don't know.

Its a guy who sells 5 PCM testers for 370 EUR. He bought them for the sole purpose of having parts for his NFAs...

cheers
Martin
Re: Looking for a feedthrough capacitor

 

Well, yes, just one instrument for both of us would be fine.... But no, thanks.

Cheers....

On 15/03/2023 17:58, Martin via groups.io wrote:
Hi Harke,

item #294954912663 on a well known auction site would probably yield a good stock of these.

Not a bargain, unfortunately.

cheers
Martin
Re: Looking for a feedthrough capacitor

 

That item doesn't show up as anything. What was it?

On Wed, Mar 15, 2023 at 05:58:00PM +0100, Martin via groups.io wrote:
Hi Harke,

item #294954912663 on a well known auction site would probably yield a good stock of these.

Not a bargain, unfortunately.

cheers
Martin
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Unix/Linux - We don't do windows
Re: Looking for a feedthrough capacitor

 

Hi Harke,

item #294954912663 on a well known auction site would probably yield a good stock of these.

Not a bargain, unfortunately.

cheers
Martin
Re: Looking for a feedthrough capacitor

 

¿ªÔÆÌåÓý

Hello Martin,


I immediately recognized this feed-through capacitor. Seems typical for WG as my Rauschpegelsender RS100 has the same. One showed a short and as I considered it as unobtanium, I just removed this cap and installed a wire. Not so nice but it works. In the RS100 it is used as connector to supply + 12 V to a pcb with the noise generator. I guess the mechanical force in the end destroyed this feed-through cap.

Obviously: if you find a source, please let me know.

Best regards,

Harke

On 15-3-2023 16:25, Martin via groups.io wrote:

Hi all,

I'm looking for a replacement for a shorted feedthrough capacitor for my SNA1 Wandel & Goltermann analyzer. It seems special in that it is very thin on the interiours side, where the bended wire is. I cannot find anything like that on the internt. Below some pics (metric scale!).

The parts list says 8c20 / 0855-0020.0008 / C-Keramik / ZZMZ / 4N7 / 20/80 / 63V.
So its a 4n7 ceramic capacitor with 63V rating. In the SNA this capacitor is handling a 12V supply line.

Does anyone have a similar item in his drawer?

thanks
Martin
Looking for a feedthrough capacitor

 

Hi all,

I'm looking for a replacement for a shorted feedthrough capacitor for my SNA1 Wandel & Goltermann analyzer. It seems special in that it is very thin on the interiours side, where the bended wire is. I cannot find anything like that on the internt. Below some pics (metric scale!).

The parts list says 8c20 / 0855-0020.0008 / C-Keramik / ZZMZ / 4N7 / 20/80 / 63V.
So its a 4n7 ceramic capacitor with 63V rating. In the SNA this capacitor is handling a 12V supply line.

Does anyone have a similar item in his drawer?

thanks
Martin
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

Hi again.

I pulled a manual from:-


After a lot of scrolling and reading, sadly, the only references I can see for the RS232 port, is to attach a printer/plotter to, to make printed copies of the screen and other data.

There is no command/response protocol listing, that you'd expect if it was capable of being remote controled/programmed via that port. (Option 043, correct?)

I can find no mention of using it for remote control/programming of the analyser from a PC.

For that, you'd need "Option 041" the HPIB interface.? (That can also be used with plotters, but obviously only HPIB devices.)? And I'd bet that comes with a seperate manual that will detail all the commands and responses etc.

Try reconfiguring your serial link, to that the analyser can send data to the PC.? I think it is only capable of 9600bd, so you can probably loop back the handshake and status lines so that the analyser is happy all the time.? The PC should be more than fast enough to swallow 9600bd data without issue.

Set the PC up so that RealTerm just dumps what comes in to the screen.? 9600, n, 8, 1 should be a good start.

You'll probably see loads of garbage when you initiate a plot/print from the analyser, that is OK.

I'm not saying you "Can't" use the RS232 to remote control/program the instrument, just that "I still don't know" if that is possible, based on the info I've found so far (link above.)

Regards.

??? Dave G8KBV.

--
Created on and sent from a Unix like PC running and using free and open source software:
Re: HP 8341A how to install attenuator

 

Thank's for the information,? finally we have succeed? ?comparing one 8341A with another having an attenuator, now the unit control the attenuator nicely, obviously the explanation in service manual are quite obscure for me and it is quite difficult to understand how to compute the value to store.
but finally I have done it thank's for your explanations
ON1EV
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

Thank your for valuable notes.

What I did try yesterday was to clear DTR (PC) <-> CTS(SA) and set RTS (PC) <-> DCD (SA) but I didn't observed the L letter on bottom left but nothing.?
I'll try the COPY option you suggested to check if I can receive data.?
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

¿ªÔÆÌåÓý

Correction ¨C to the lines in the message below

?

To get an L, SA CTS must not be asserted, because T will obscure the L.

Then SA DCD must be asserted (+).

?

If both CTS and DCD on the SA are asserted, i.e. when the pc port is open normally, only T will appear

?

From: [email protected] [mailto:[email protected]] On Behalf Of k1ggi
Sent: Tuesday, March 14, 2023 10:24 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP 8595E SA DB-25 RS232 is not functioning.

?

Ok, getting the T is reassuring.

?

To get an L, SA RTS must not be asserted, because T will obscure the L.

Then SA DCD must be asserted (+).

?

If both RTS and DCD on the SA are asserted, i.e. when the pc port is open normally, only T will appear.

?

Please look at the voltage.

?

Do you see a positive voltage on SA DCD (DB25 pin 8)? (produced when pc RTS is asserted on pc DE9 pin 7)

?

That is necessary for commands to be recognized by the SA.

?

I have option 043, your option 023 may behave differently, but if you can configure your COPY button to plot to rs232 in CONFIG, then the SA should be able to transmit rs232 data when you press COPY, regardless of whether it can receive rs232 commands.

So then if you see the T, with your RealTerm port open, pressing COPY should transmit a lengthy burst of ascii plot data that should be displayed by RealTerm. That may be worth trying.

?

I¡¯m still not sure if your pc usb-rs232 adapter needs its DSR (DE9 pin6) asserted in order to transmit. I¡¯m suspicious that the chip may need that control signal asserted in hardware even if the RealTerm software application is configured for no hardware flow control. My FTDI adapter does not. Try tying the adapter pin 6 to pin 8 (both driven by SA DTR pin 20).

?

Ed

From: [email protected] [mailto:[email protected]] On Behalf Of candrian
Sent: Tuesday, March 14, 2023 4:05 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP 8595E SA DB-25 RS232 is not functioning.

?

Just a correction here.

The connections I have made are:

SA? ? ? ? ? ? ? PC (USB RS232 adapter)

P1. GND? ? ?Unconnected

P2. TxD? ? ? RxD

P3. RxD? ? ? TxD

P4. RTS? ? ? DCD

P5. CTS? ? ? DTR? ?(measured -6V coming from the adapter)

P6. unconnected

P7. GND? ? ?GND

P8. DCD? ? ?RTS

P20. DTR? ?CTS

So when I said that I set DTR I meant DTR on PC side which is connected to CTS on SA. So when I set SA DTR thus the CTS on SA side I see the T letter on bottom left of the SA screen.
When I set or clear RTS on PC thus DCD on SA side oI can't notice any difference or the L letter appearing.?

In both options and all possible combinations of DTR & RTS in PC side I couldn't manage to send any commands and receive a response.?

I tried the following commands:
IP;
ID;
SNGLS;
*IDN?
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

¿ªÔÆÌåÓý

Ok, getting the T is reassuring.

?

To get an L, SA RTS must not be asserted, because T will obscure the L.

Then SA DCD must be asserted (+).

?

If both RTS and DCD on the SA are asserted, i.e. when the pc port is open normally, only T will appear.

?

Please look at the voltage.

?

Do you see a positive voltage on SA DCD (DB25 pin 8)? (produced when pc RTS is asserted on pc DE9 pin 7)

?

That is necessary for commands to be recognized by the SA.

?

I have option 043, your option 023 may behave differently, but if you can configure your COPY button to plot to rs232 in CONFIG, then the SA should be able to transmit rs232 data when you press COPY, regardless of whether it can receive rs232 commands.

So then if you see the T, with your RealTerm port open, pressing COPY should transmit a lengthy burst of ascii plot data that should be displayed by RealTerm. That may be worth trying.

?

I¡¯m still not sure if your pc usb-rs232 adapter needs its DSR (DE9 pin6) asserted in order to transmit. I¡¯m suspicious that the chip may need that control signal asserted in hardware even if the RealTerm software application is configured for no hardware flow control. My FTDI adapter does not. Try tying the adapter pin 6 to pin 8 (both driven by SA DTR pin 20).

?

Ed

From: [email protected] [mailto:[email protected]] On Behalf Of candrian
Sent: Tuesday, March 14, 2023 4:05 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP 8595E SA DB-25 RS232 is not functioning.

?

Just a correction here.

The connections I have made are:

SA? ? ? ? ? ? ? PC (USB RS232 adapter)

P1. GND? ? ?Unconnected

P2. TxD? ? ? RxD

P3. RxD? ? ? TxD

P4. RTS? ? ? DCD

P5. CTS? ? ? DTR? ?(measured -6V coming from the adapter)

P6. unconnected

P7. GND? ? ?GND

P8. DCD? ? ?RTS

P20. DTR? ?CTS

So when I said that I set DTR I meant DTR on PC side which is connected to CTS on SA. So when I set SA DTR thus the CTS on SA side I see the T letter on bottom left of the SA screen.
When I set or clear RTS on PC thus DCD on SA side oI can't notice any difference or the L letter appearing.?

In both options and all possible combinations of DTR & RTS in PC side I couldn't manage to send any commands and receive a response.?

I tried the following commands:
IP;
ID;
SNGLS;
*IDN?
Re: Firmware for HP 54200D

 

One more discovery on this - it appears that the D-version (54200D) and A-version (54200A) used the same EPROM set. I have found the same labels in pictures online of motherboards from both versions, and the newer ROM images that I loaded onto my unit are actually from a 54200A but work on my 54200D. So, if you have a 54200A or a 54200D, I am asking pretty please if you can check if you have the EPROMs labeled 54200-80022 through 54200-80028 and if so could you please dump them.

Thanks again and in advance,
Matthew D'Asaro
Re: 5086-7337 *Yig Oscillator issue*

 

¿ªÔÆÌåÓý

Hi All Ok about the acronyms?

?

We had RPG? Rotary Pulse Generator ?apparently this is the HMI control knob ??Human machine interface (a Knob ) or as I know it ?RPE ?rotary pulse encoder

RUD? new one for me ?but ok

?

Regarding the voltage on a Yig basically providing the main votes are on it they normally work?

but reference to the Plug in Maine output mudded the waters? Hens talking about setting up the multiplier yig assembly ?

but as it was a parts Kit? that there could have been an issue with the Yig drive voltage as no output in the range 2-6 Ghz

?

Roberto

I do not know your outlay but I would strongly suggest you do not butcher it ( pull it apart ) As in the long term you will regret it

Ar you still running the 8350 frame of several power supplies as that would be my number one repair and go shopping for another plug in

Just a bit of information I have a 8350 that has given big problems as I didn¡¯t realise the socket interface between plug in and 8350 was corroded on the 8350

Best of luck

?

?

?

?

From: [email protected] [mailto:[email protected]] On Behalf Of Tom Lee
Sent: 14 March 2023 17:22
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] 5086-7337 *Yig Oscillator issue*

?

Or rocket-propelled grenade, in another profession.

?

In certain circumstances both can undergo rapid uncontrolled disassembly (RUD).

?

Tom

Sent from my iThing; please forgive the typos and brevity



On Mar 14, 2023, at 10:07, Roberto Vegliach <roberto.vegliach@...> wrote:

?

Dear, RPG stand for "Rotary Pulse Generator".

This is the endless knob on front panel for changing parameters.

Regards.

?

Il Mar 14 Mar 2023, 17:57 Bruce <bruce@...> ha scritto:

Don -

Thanks - I have not played much with the 8350 plug YIGS (mostly 834X?
stuff) - good information to know.

I do find it a bit surprising though.? Reasoning is as follows,?
correct me if I'm wrong:
1) Frequency is primarily determined by main coil current
2) Remaining voltages supply the oscillator and amp (if there is one)?
- they do not vary with frequency (true ??)
3) The linearization is primarily a shaping function on the main coil current.

So I would expect that if the main coil current were within the?
expected limits and the other voltages were correct, the YIG would?
have output.? Thoughts??

Cheers and thanks for the insight.

Bruce



Cheers!

Bruce

Quoting "Don Bitters via " <donbitters=[email protected]>:

> Absolutely yes! I have been there on this issue. Even a brand new?
> one from the factory may not give an output, or a very low output?
> until it is aligned with the proper endpoint drive voltages.
>
> Don Bitters
>
>
>







Re: HP 8595E SA DB-25 RS232 is not functioning.

 

Just a correction here.

The connections I have made are:

SA? ? ? ? ? ? ? PC (USB RS232 adapter)

P1. GND? ? ?Unconnected

P2. TxD? ? ? RxD

P3. RxD? ? ? TxD

P4. RTS? ? ? DCD

P5. CTS? ? ? DTR? ?(measured -6V coming from the adapter)

P6. unconnected

P7. GND? ? ?GND

P8. DCD? ? ?RTS

P20. DTR? ?CTS

So when I said that I set DTR I meant DTR on PC side which is connected to CTS on SA. So when I set SA DTR thus the CTS on SA side I see the T letter on bottom left of the SA screen.
When I set or clear RTS on PC thus DCD on SA side oI can't notice any difference or the L letter appearing.?

In both options and all possible combinations of DTR & RTS in PC side I couldn't manage to send any commands and receive a response.?

I tried the following commands:
IP;
ID;
SNGLS;
*IDN?
Re: HP 8595E SA DB-25 RS232 is not functioning.

 

I just run a test regarding your notes.

You are correct when I set the DTR (+VE) from RealTerm I can see a T visible on the bottom right of the SA screen which I didn't notice in the past. When i clear DTR the T disappears.?
CTS and DCD are marked in green to RealTerm which means they are set. Both signals are input to the PC.

I have not managed yet to change the T to L and see if it can receive any data
Re: 5086-7337 *Yig Oscillator issue*

 

¿ªÔÆÌåÓý

Or rocket-propelled grenade, in another profession.

In certain circumstances both can undergo rapid uncontrolled disassembly (RUD).

Tom

Sent from my iThing; please forgive the typos and brevity

On Mar 14, 2023, at 10:07, Roberto Vegliach <roberto.vegliach@...> wrote:

?
Dear, RPG stand for "Rotary Pulse Generator".
This is the endless knob on front panel for changing parameters.
Regards.

Il Mar 14 Mar 2023, 17:57 Bruce <bruce@...> ha scritto:
Don -

Thanks - I have not played much with the 8350 plug YIGS (mostly 834X?
stuff) - good information to know.

I do find it a bit surprising though.? Reasoning is as follows,?
correct me if I'm wrong:
1) Frequency is primarily determined by main coil current
2) Remaining voltages supply the oscillator and amp (if there is one)?
- they do not vary with frequency (true ??)
3) The linearization is primarily a shaping function on the main coil current.

So I would expect that if the main coil current were within the?
expected limits and the other voltages were correct, the YIG would?
have output.? Thoughts??

Cheers and thanks for the insight.

Bruce



Cheers!

Bruce

Quoting "Don Bitters via " <donbitters=[email protected]>:

> Absolutely yes! I have been there on this issue. Even a brand new?
> one from the factory may not give an output, or a very low output?
> until it is aligned with the proper endpoint drive voltages.
>
> Don Bitters
>
>
>








Re: 5086-7337 *Yig Oscillator issue*

 

Dear, RPG stand for "Rotary Pulse Generator".
This is the endless knob on front panel for changing parameters.
Regards.

Il Mar 14 Mar 2023, 17:57 Bruce <bruce@...> ha scritto:
Don -

Thanks - I have not played much with the 8350 plug YIGS (mostly 834X?
stuff) - good information to know.

I do find it a bit surprising though.? Reasoning is as follows,?
correct me if I'm wrong:
1) Frequency is primarily determined by main coil current
2) Remaining voltages supply the oscillator and amp (if there is one)?
- they do not vary with frequency (true ??)
3) The linearization is primarily a shaping function on the main coil current.

So I would expect that if the main coil current were within the?
expected limits and the other voltages were correct, the YIG would?
have output.? Thoughts??

Cheers and thanks for the insight.

Bruce



Cheers!

Bruce

Quoting "Don Bitters via " <donbitters=[email protected]>:

> Absolutely yes! I have been there on this issue. Even a brand new?
> one from the factory may not give an output, or a very low output?
> until it is aligned with the proper endpoint drive voltages.
>
> Don Bitters
>
>
>








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