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Old 23rd June 2013, 02:20 PM   #1
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Join Date: Feb 2009
Location: Melbourne, Oz
Default Hickok 1890M transistor tester

Anybody got a Hickok 1890M, and especially a schematic for one of these, which come under NSN 6625-00-993-3389?

The closest tester is certainly the Hickok 890, and units which come under TS-1836 (eg. Sierra Model 219 series, and Colmar 245) also are similar. The Hickok 890 manual appears to be very close, but there are a few circuit tweaks for the 1890M, so I'd appreciate a schematic to assist checking the operation of all the circuitry. It certainly is a well made beast.

Ciao, Tim
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