Products > Test Equipment

Manual for Tektronix CDC250 universal counter

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baldwin1974:
Does anyone have a copy of the manual/schematics for the Tektronix CDC250 universal/frequency counter?  I just got one and it works although it needs some calibration; but, the power transformer gets a little warmer than I would like.  Before doing too much investigating, it would be nice to have the manual....

rrm479:
Hi,
Look for BK precision 1823, not the "A" version, is the same equipment and you can find the manual with some calibration procedure.
This equipment was built by Escort (I think) EUC3200.

jpwolfe31:
I was looking for one too, and found it here.

https://w140.com/tekwiki/images/d/d5/070-7998-00.pdf

coromonadalix:
Aaaahhh the famous 7226 counter ic

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