Tube Amp Archive

Thanks Roe, think I got myself confused with some measurements because I was measuring the taps unloaded

Appreciate the response.

Hello, I have a quick question...when a manufacturers states the primary impedance of an OT do I assumed that figure was derived from an 8ohm load on the secondary? Is that a convention? It's often not mentioned how the PI value was derived from the impedance ratio (ie, what secondary load was used ...

Hi All,

Does anyone have any experience/thoughts regarding the goldentone rhythm light circuit (attached)?

TIA