Quote:
Originally Posted by bandersen
Serial # 38069 would be TS-4H. The TS-4H does not use the same ballast as the TS-4J late. It uses the older '303 type
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Really wow I have 4h 4j and 4d schematics and from what I see it shows r80 for all 3 look the same. Ok great now we know that this set is infact a 4h thanks bob for that info. The 3 ballasts seem to show the same resistances but I think the ts-18 is different with one less resistor.