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
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