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And the Sams is close to the 9TC-240 I have, but not exact. In fact, I don't think the ETF has the specific schematic and service data for this chassis. This chassis is the KCS 28B-1. I'm using the voltages from the Service Manual 51 that says it covers KCS28 but is written in reference to the 8T-241, 243 and 244 models. The voltage on the HO screen is 160v with an input signal and 142v without.
Bob, measure the voltages on the 6AV6 audio amp while connected to pin 6 of the 6AL5 discriminator?
The only referred to exact schematic I have is in a service publication TV shops used (the ones in the 16-9 orientation!) that covers RCA TVs from 1946 to 1950. The info in the ETF technical section for KCS 28 and 9T-240 have some differences in resistor and capacitor values from this publication. When I measure some of these components, they tend to agree with the parts list in the TV shop manual
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