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Hey everyone!, Sorry for resurrecting a long dead post but i have a new development: over the Holiday week i had a chance to install a new part. On ePay i found a new tuner control... module... selector whatever it is called. My set uses a 175-5074 module and i found a 175-5073 for cheap. The difference is the connectors and the angle of the base plate, It is used to connect it to the cabinet and tuner module which is a 175-2026 module. Well long story short, i found that the mechanical parts "variable resistor boards" are the same. this unit uses printed circuits on a ceramic substrate and are connected via a socket(s)????. I dismantled both units and swapped the new substrates for old and now the set has rock stable channels and has no de-tuning after a few days. Just thought i'd update my latest work with it's outcome. Logan
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