Recent content by emi2345

Thank you for such a great helpful response! I've been in the studio with a UK hB-15n so I just opened it up and had a look at the 3-pos switch. It looks like they've gone for a 3pdt on-off-on with one pole for the LED colour, one pole for the HT and one pole for the bias, either bypassing the...

I’m building something along the lines of the H B-15 Ampeg: Heritage Series - B-15 in a 3U rack-mounted chassis with Hammond 374BX, 1650 PA and 159P transformers. I have built one amp before, a stereo EL84 amp similar to a Leak stereo 20. My main question concerns the bias and standby switches...