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Hello, The connectors for the HP432 are microphone connectors from WPI ( Cooper ) , see : http://millimeterwave.free.fr/Eaton_Cooper_Serie91.pdf And also page 17 of this catalogue:

They did mine (UK) coupla years ago. I was astounded by the service (and I have bought Keysight equipment by preference ever since). I called them to ask why they hadn't picked it up yet and it turned

To answer the first question, yes it is not available and there is no cross reference.

I'm looking to complete a set of feet for a 3478A. I have three "grey" feet and a single bail-foot!!! A complete set would be perfect but as a minimum I need a metal bail foot to make use of the two

Hello Group, I started the restoration of my HP432A and HP35B power meters. One of the HP435B is in a quite bad shape, the plastic caps on the front panel knobs are missing, also the front plastic

Hi, This sounds as something that should not be to difficult to automate with your favorite programming language. As long as you have a signal generator and power meter on GPIB, together with the SA,

Hi! Looking at the 1N831 data sheet, it appears that this is a fairly generic Silicon RF diode, and in fact looks like originally spec'ed as a mixer diode.. I am fairly sure that any HP leaded

Hi You first need the first five characters of the instruments serial number.? There are some 8640B's that were made in Scotland which at first look more like they used parts of a 8640A.? Fifth

I will pull the covers off tomorrow and have a look. I downloaded a rough copy of the service manual.Is there a way to workout which of the versions the counter is.The device is not mine but I would

Hello Dave, I have the same problem. I found a self-proclaimed expert, but in the end he stopped communicating; his advice got me nowhere. The main thing I learned was that there have been many

I've borrowed a 8640B which as far as high level output works well. The problem is that the counter on both internal and external selection shows all zeros with three decimal points thrown in. There

I'm trying to get my head around the LO amp, doubler and tripler circuit of the 8560E Second Converter. Does anyone know to identify the transistor "Bz" and the propriety chip 1GXX-XXX? Dave >

If you are searching for chip replacement then Leo Bodnar is producing drop-in replacement, see: http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=125_127&products_id=324 -vf- Dne

Askild I have a sig gen and a specan that both go to 3GHz. The test point on the converter is labelled LO test and I assume that this is the 600MHZ but I see nothing on this even though the 600MHz

Thank you very much for this information -Yves De : [email protected] <[email protected]> De la part de bigpapak507@... Envoyé : 10 février 2022

You are on the right track. The 1GC1-4210 chips tend to deteriorate over time causing the failure mode you described. Your other option is to find a 60019 board and replace it.

https://www.amazon.com/Circuit-Non-Toxic-Conductive-Electronic-Keyboard/dp/B08T9MKSG5/ref=sr_1_10?keywords=conductive+ink+pen&qid=1644472651&sr=8-10

OK - then ther should be no DC "roll off" Cheers! Bruce Quoting Dave Wright <davewrightsplace@...>:

The 8471A is DC coupled. The input termination resistor is connected between the diode anode and case. The output capacitor is connected between the diode cathode and the case. _Dave