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HP 355C VHF Attenuator


 

Gentlemen,
I just received a 355C attenuator I won on ebay.

When put to the test the attenuation is all over the place.

Traced the faults to two of the micro switches. When closed the contact resistances varies from several ohms to open circuit depending on the number of times I rock the switch.

I don't have any documentation on the unit so can't quote the part numbers.

One most likely could not afford the genuine HP part anyway.

Does any one know of a replacement part for these micro switches?

Thanks

David


David Hopkins (VK4ZF)
Queensland
AUSTRALIA
davhop@...
S 27, 22.294 E153, 11.008

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