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Re: A homemade diode power sensor for HP meters


Lothar baier
 

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You can get the connectors from binder which is preferred if you are in Europe ( RS Components , buerklin, farnell )? or you can buy them from amphenol !

A few words of wisdom though based on experience :

First of use connectors that are gold plated if you use other plating options you can end up with issues at low power levels ( noise ? thermal voltages ???? ) the second thing is that you have to follow the original stackup of the cable , the agilent cable uses 12 wires but 2 wires are shielded separately and you have to keep it that way to avoid problems !

Back when I build up cables what I did is to order a 100ft 11730 cable from agilent which cost me about $1200 , I cut the cable in 3ft sections ordered C091 Amphenol connectors and then used them to build the cables !

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https://www.mouser.com/datasheet/2/18/C09131C0122002-1285663.pdf

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From: [email protected] <[email protected]> On Behalf Of Paul Bicknell via groups.io
Sent: Thursday, May 19, 2022 3:10 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] A homemade diode power sensor for HP meters

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The connecters are available, Binder make 3 types and they did cost ?10 , ? 13 ?and ?16? each

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Regarding Diode sensors do not forget the 430 meter was made for Diode sensors? also I believe the early 431 A had a switch position for Diode

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Personally looking for a modern meter ( not expensive ) for wave guide diode detectors but calibrated in dB

Paul

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From: [email protected] [mailto:[email protected]] On Behalf Of Alexandre Souza
Sent: 19 May 2022 20:49
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] A homemade diode power sensor for HP meters

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Talking about power sensor, I got lucky enough to get a (working) 436b and a WORKING \o/ sensor. But unfortunately, got it without the cable. Is there a cheaper source for the cable than ebay?

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73 de PU2SEX Alexandre

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Em qui., 19 de mai. de 2022 às 13:41, visitslovenija <musto102@...> escreveu:

An interesting and long running thread.

Like many, I have a bit of a soft spot for the old HP435 meters and would like to have one working on the bench.

Since broken detectors do show up now and again at a decent price, has anyone successfully reworked one with busted thermocouples and modified for a diode front end? I know it’s small and very fiddly, but is that not easier than trying to build one from scratch?

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