Description

For sale is this good tested tube amp power transformer, 10 pounds, can output 200 VA volt amps. for up to 4 2A3s, you'd want a filament tap of about 2.5VCT. If the tap is a little higher like 3VCT, you can run something like a foot of 24-28 gauge solid wire from eithernet cable to each filament side to drop the voltage a fraction of a volt. Size 3 7/8 x 4 1/4 x height 5". You also can run the 3VCT to the 2A3 filaments, have like a 100-250 ohm wirewound potentiometer outsides go to filament connections, and run the center of the potentiometer towards ground, and balance it as a hum buck for each 2A3, or each pair of 2A3s on a channel. 120V in, has two 1.5V out taps, in series they produce 3VCT there is a tap that is 3 37 and 40V, you might want the 40V for a negative bias supply if you don't float the 2A3 cathodes around 50-70V. The higher voltage also is a little unusual 20 260 280V, you might use a solid state bridge rectifier to produce about 350VDC for a quad of 2A3s. Or if you use Sovtek 2A3s or modern ones made for up to 450VDC, use the 280VAC to make about 380VDC. The unused 20V or 37 40V might be used for DC supply for 12ax7 heaters in series... ___ __ or because the B+ current can be very high and not super high voltage, 380VDC 200ma, might be good for 6080s, but you'd want a filament transformer. ___ sold as-is no returns because very expensive to ship a 10+ pound transformer, ask if you have questions.