Tube DIY Asylum

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RE: Inexpensive Power Transformers

Posted by Audio Pete on June 15, 2017 at 14:55:17:
Just did the same thing myself. I bought an industrial step up transformer that can supply 500ma @240v. Adds up to 340v. Not much voltage but plenty of current. Plus, it's mounted (actually welded) inside a heavy, steel box. Then, for the heater supply, I am going to use a $20 SMPS of 12v,5A. The whole thing will become a 25w "rat rod" amp.