Tube DIY Asylum

Posted by Jim Womble (A) on April 27, 2012 at 03:51:16

In Reply to: RE: power transformer design questions or call it debate . posted by danlaudionut on April 27, 2012 at 01:30:30

I used this technique in my Raven style line stage, where I only wanted around 120 volt b+ and didn't want to drop a lot of volts. I used a small lundahl PT with the primaries stacked, the 6.6 secondaries in series to yield 6.6 for tube heaters, and used the 500 v ct secondary to yield 250 ct into a clClC supply, which gave me the b+ I wanted, runs very cool (can leave on forever and doesn't get warm).