Dear all,
After reading all you guys' postings, I decide not go for the 300B
push pull with multi output valves! I'm rather go for a much simple
approach -- SE amplifier with 300B XLS output tube.
This is actually my friend's suggestion.
I want to use a WE 437A driver tube and then transformer coupled to
the Emission labs 300B XLS with parafeed output arrangement (the
parafeed OPT has 5K primary).
Power supply is convention LC + CLC with 274B rectifier tube.
My question is:
What is the recommend primary impedance of the interstage transformer
for 437A? Can I use the Tango NC20F? Any comments?
http://www.ys-audio.com/tango.htm#Input%20Transfomer
Thanks!
