Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

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RE: A matter of choises

Posted by Michael Samra on April 4, 2017 at 03:45:31:
You are good.I actually run a pair of my Fisher 100 amps which are identical to the 80AZ amps that take EL37s.I had built an outboard supply for separate filament transformers biased with a 1.2k 10 watt cathode resistor.It is actually running at 290v across each tube but these amps sound incredible and I'm making 16 watts output per amp.