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Old 01-25-2018, 01:06 AM
Jon F's Avatar
Jon F Jon F is offline
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Join Date: Dec 2013
Location: Morgan Hill, CA
Posts: 232
RCA CTC-16 Lost HV after cleaning/testing tubes

Hi all, I was working on my RCA CTC-16 cleaning and testing tubes and turned the set back on and I lost HV. Watching the cathode current at the 6EJ6 it starts around 200ma then shoots off the scale and the tubes start to overheat so I turn the set off

Before I did this the set powered up fine, no color, but still worked OK. I've re-checked the tubes, substituted them, made sure they are in the right socket, etc all the basic stuff.

The tubes I messed with before the issue: 6JE6 horz output, 6DW4 damper, 6GF7 Vert output/osc, 6FQ7 Horz orc, 6KA8 AGC noise/sync sweep.

I'm not sure what I did but maybe someone can point out something I missed? Also, electrolytics have all been replaced. Tubes have all tested OK.
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