Most of the work that [Ron] has done in the past with vacuum tubes ... The Dynaco 6V6 circuit based PCB was bought from China and minor changes were made to it. The amplifier uses one transformer ...

For the electronics enthusiast a tube audio amplifier makes for an interesting and unusual project, and for that reason it’s one tackled by many. [Keri Szafir] is no exception, and she’s ...

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