02-09-2018, 06:22 AM
Disagree. Fisher ran their output tubes way too hot, so a stock restore combined with today's higher line voltages is a recipe for short 7591 tube life. IBAM or IBBA plus EFB is the way to go.
When I rebuilt my TA-600, I incorporated the IBAM mod as part of the restoration and the set was not turned on until after I had done the IBAM mod.
When I rebuilt my TA-600, I incorporated the IBAM mod as part of the restoration and the set was not turned on until after I had done the IBAM mod.
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Ron Ramirez
Ferdinand IN
