I have a hand-built (point-to-point) wired Deluxe Reverb AB763 circuit amp that is about 8 years old. Over the weekend, I decided to try a different set of 6v6 power tubes. When I plugged in my Bias-Rite meter to check voltages and currents (with the new tubes) I was very surprised at how hot this amp was running: Plate Voltage: 425v Bias current: 35ma Power: about 14.9 watts I know the 6v6 MPD is rated about 14 Watts, and in my tweed amps, I normally bias at around 70% of that (at least as a starting point, then use my ears). The thing is, I've been running this amp for the last 8 years like this. Values are about the same with the original NOS Brimars that were in it. So, I figured I'd lower the bias a bit and see how it sounded. Unfortunately, I found the bias pot was already set as low as it would go. What should I do? Amp sounds great...just wasn't expecting those numbers! My guess is that I should take it in and let a tech look into the bias circuit. Am I missing something here ? Anyone experienced this before? Sorry for the lengthy post, I just don't have much experience with BF amps...appreciate it!