[Test-Equipment] Ohmmeter AN/PSM-43 (Ohmmeter ZM-21D/U)

[Jerry K]

Remembering far, far back in my early USN days (early 60's), we used these
to test antenna coax runs. I'm pretty sure it was a nominal 500V, and the
scale is in megohms.\
Jerry W5KP


-----Original Message-----
From: test-equipment-bounces at mailman.qth.net
[mailto:test-equipment-bounces at mailman.qth.net]On Behalf Of James Duffer
Sent: Friday, August 06, 2004 9:23 PM
To: test-equipment at mailman.qth.net
Subject: [Test-Equipment] Ohmmeter AN/PSM-43 (Ohmmeter ZM-21D/U)


I have a NOS AN/PSM-43 without a manual.  I realize this is used to test
insulation resistance but I would like to know what test voltage is (I guess
this depends on the rate the crank is turned, but what is the maximum
nominal voltage?)  What is the meter scale, is it megohms?

Thanks for any information that can be provided.

73, Jim, wd4air


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