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Re: HP 3478A Ohms Calibration


 

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Hi again George,

Actually finding the cards in UK has not been that easy, I did find a couple but most of what I bought came from a guy in the US.

So, i¡¯m Happy to wait until you are back in Minnesota and we can see what can be done then.
Keep safe and well.
Nigel
From: [email protected] <[email protected]> on behalf of ghnatiuk@... <ghnatiuk@...>
Sent: 15 April 2020 20:25:51
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] HP 3478A Ohms Calibration
?
Nigel,
There are a ton of the relay cards out there in the world.? We sold alot of the 3488A units(10s of thousands during its life).? It was a very popular system for manufacturing test.? I would think you could find the relay cards in the UK for alot less than I could send any for cost of shipping alone.? If not, I will work with you on it.? I will have to wait until I am back in Minnesota to price out shipping.

The biggest problem you will have in purchasing any I/O card except the VHF cards(44472A, 77,78,91,92)? is having the connector block still attached.? You could solder wires direct to the card if needed but that ruins the fingers.? Not a problem if you do not plan on changing connections or just have pigtails for future connections.? For Hi-impedance integrity, elliminating the connector block is desirable so it is not that bad not to have the connector block.

George

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