Quote:
Originally Posted by old_coot88
Back in the day, sweep alignment was not part of the routine service paradigm, and was largely neglected. Now that decades have gone by and LC components have (or may have) drifted a tad, sweep alignment is certainly worthwhile to learn to do. But practice on a B&W first.
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Looking at the service notes the process looks like several days of work involving lots of unsoldering, lots of resistors to be added and removed, dummy loads, bias voltage supplies with several kinds of bias. I did purchase a digital storage Tektronics 'scope so I can match those precise shapes given in the 'scope illustrations hopefully.
I sure will practice on a simpler set. Every service operation on the CTC-4 involves the possibility of damaging a simple put irreplaceable part. A small mistake and all the work and the set is down the drain. Unlike other folks I have no spares and frankly never see any.
John H.