Anyone know this output iron? Specs?
Someone sent them to me, and said they were the "C" version, but the #s are clearly the "B" output transformers. I used my SS preamp and a signal generator to push 1K sine into the 8 ohm tap and got 23v across the primaries. 23:1 ratio, or roughly 4.2-4.3K A-A impedance. Is that about right?
I have these tubes to use: 6L6GC, KT77. The 77s would be much "harder" on the filament windings, but I think I can make it work.
Thanks for any info,
Blair