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7189 vs 6BQ5/ EL84 tubes
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02-07-2019, 02:25 PM
benman94
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Join Date: Jun 2011
Location: Detroit, MI
Posts: 1,190
If B+ on the 6BQ5s 360 volts or less I'd say feel free to use any 6BQ5 variant (except the Chinese tubes and the NOS Euro trash).
If the B+ is greater than 360 volts, I'd say either buy new Russian 6BQ5s, or pony up the dough for some NOS GE 7189As.
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