Axiom Home Page Forums General Discussion Technical Questions How can I tell if a vintage receiver has tube amps

To add to what kcarlile said, it's my experience that mainstream builders of amplifiers sold and distributed in North America like Technics and other Japanese brands were entirely solid state from the 1970s onward.

In specs for a tubed unit, you might read the phrase "output taps for 4 ohms, 8 ohms, 16 ohms" for tube amplifiers that used output transformers, many of which did.

Alan