Hi all,
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I recently just picked up a 53132A with 'meas' error on channel 1, and with some probing it turned out to be a faulty Q30, so a 20 cent part fixed my $140 gamble. :)
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As a bonus, this counter came with option 010 high stability OCXO, and a 3GHz channel 3 option.
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The prescaler is not a genuine HP item, although it does use the same prescaler chip, but I haven't yet been able to identify who made it or where it came from.
It is a different physical layout to HP, and has soldered in brass standoffs and the input coax is directly soldered to the PCB, indicating a somewhat DIY attempt, but the board looks to be somewhat well thought out and seems at first glance to somewhat follow the HP design.
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Maybe this is an older aftermarket prescaler that isn't available anymore?
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Has anyone seen this design before? I wouldn't mind finding out the history of it.
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I think I'll also measure it's input sensitivity for fun once I have my counter all buttoned up and compare to my prescaler design and the HP specs to see what is better.
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Thanks,
Jared
Jared Cabot