Quote:
Originally Posted by jr_tech
"Do the sets without fine tuning use a knurled shaft for the channel selector? "
Yes, the shaft is exactly the same as the volume and contrast shafts.
jr
PS my channel knob is missing the dot, but somebody scratched a line on it with a file to indicate the channel selection 
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Ugh I hate when people deface knobs.
Do you happen to know what chassis run your set has (TS-4??)