Reading an article about the first transistorized Hi-Fi amplifier, [Netzener] got the ... He also made some improvements to the push-pull bias circuit and limited the high-frequency response.

First made in 1959, this is the best-selling tube amplifier of all time. Every product is carefully selected by our editors.

Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms ... There’s a lot of fresh work under that brooding exterior. The Aethos’s power amplifier section uses two ...