The KT-66 is rated at 25W, the operating range being from 12-18W. You need to know the plate voltage. A Compu-Bias would greatly help. Mcdonald43 is correct. Check with the amp's manufacturer about the bias setting but also ask him where in the power range the tubes are operating at that bias. Good luck.
Question About Biasing KT66 Tubes
Hi,
I am attempting to bias a tube amp for the first time and cannot find much information on biasing KT66 tubes. My amp is a Antique Sound Labs AV25DT, and I biased the tubes to 550mv based on some random google searching I did, but I'm not confident that this is correct.
How do I know what to bias the tubes to?
Marco
I am attempting to bias a tube amp for the first time and cannot find much information on biasing KT66 tubes. My amp is a Antique Sound Labs AV25DT, and I biased the tubes to 550mv based on some random google searching I did, but I'm not confident that this is correct.
How do I know what to bias the tubes to?
Marco