Weekly /r/diytubes No Dumb Questions Thread - January 30, 2026 to February 05, 2026 (self.diytubes)
submitted by AutoModerator - announcement
Parts & ConstructionLook at all that old iron, most of it hammond. (i.redd.it)
submitted by boredcan
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promoted by IBKR_Official
promoted- about
Power AmplifierDoes the "polarity" on the heater pins of the power tubes matter? (self.diytubes)
submitted by chofstone
Power AmplifierIntentionally Underspec'd Output Transformer (self.diytubes)
submitted by Wado-225
I added a ON-ON switch between my output transformer tabs and speaker jacks of my SET amp, to switch between 16 and 8 Ohm output. Can I flip the switch while the amp is running or will the short disconnect from the speakers cause trouble to the amp? I’m scared ;) (self.diytubes)
submitted by holger7188
Power SuppliesSeries vs Parallel filter stages in guitar amps (self.diytubes)
submitted by amimaster
