well last night after trying the text book method that failed on channel 3, i switched the converter output and tv set to ch 4 and tuned in the set, it would detune a couple more times that evening, I fell asleep in my chair watching Svengoolie but as i awoke the next morning the set was still showing a great picture after being on all night. I think i will keep my eyes open for a 175-5074 tuner control "module and the tuner module "is this on the backside of the chassis or is it the long metal box or the left side of the chassis?" and have spares ready if i want to clean/repair these parts. Thanks everyone for their help and suggestions.
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