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So, have a PrimaLuna Prologue Four Amp and...

have a very general question about the various power tubes that it can run. Between the EL34, KT66, KT88, 6L6GC and the 6550's, which ones "generally" give off less heat...don't mind switching to the less hotter version tubes during the summer months...


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Topic - So, have a PrimaLuna Prologue Four Amp and... - popsy 15:51:26 06/24/20 (7)


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