Last time I made a guitar amp was 1975, and haven’t hardly played at all since then either. Time to get back into it! I want to make a small practice amp and I was wondering, would single ended class A be a better choice? I’m thinking of even harmonic production when you start to push it a bit. Only got a small handful of valves on hand, a 6DQ6A, two 6CA7s and a NOS 807. I’m leaning toward the 6DQ6A with about 120V on the plate. Not looking for high power output, just a setup that will ease into more “colour” as I wind the volume up. Low budget too. Any suggestions?
"Better"?
There are great amps either way. An old Champ is a surprisingly cool little amp. But a small push pull amp can be killer as well.
Better is up to you. Is a beef steak better than a lobster? Depends on who's eating it.
There are great amps either way. An old Champ is a surprisingly cool little amp. But a small push pull amp can be killer as well.
Better is up to you. Is a beef steak better than a lobster? Depends on who's eating it.
Won't matter a P-P, works just as well. My first amp was a P-P. But you might as well save the 6CA7'S. What output transformer you will use it the question.
Three.
a) read everything RobRobinette has written. Starting with the go-to article on Tube Guitar Amp Overdrive by Rob Robinette
b) build a Lamington. Likely a Solo.
c) join AGGH
Back to your original question: a PP AB circuit has power rail sag when it moves from Class A to Class B. That changes gain and introduces 50/60Hz IMD.