Update 14.04.2020: Something unexpected happened – I wasn’t happy with the PWM fan noise, so I opened it up again, messed around with some botch wires and changed the programming. The PWM frequency is now at around 125kHz, absolutely inaudible to my non-bat-ears. No hum, no PWM noise, no tears. Update 03-2020: There’s been some… Continue reading

I started this project back in 2006/2007 and until a couple of months ago the PCB for it was lying in a box in my cellar. At some point I was looking for something and found it and thought I could maybe give this project another go after forgetting about it for 12 years. So… Continue reading

These days I’m working on a 100 Watts tube guitar head – featuring four KT77 power tubes and three 12AX7 in the preamp. It’s a two channel amp – one channel clean (Fender-like) – one channel crunch/lead (think hot-rodded Marshall 2203) and there’s another feature to combine those two channels, meaning to put the clean… Continue reading

Update 18.05.15 The amp is finished!! It sounds quite a bit better than the prototype already. I’ll post some pics of the 2×12 combo enclosure loaded with G12M Creambacks in the near future + the layout will be available here too. I left some self-explanatory pictures here. The prototype of this amp can be heard… Continue reading

I left some self-explanatory pictures here – this amp is a BEAST!! Update 2024: I think this is my favorite amp in my collection. I added a switch to deactive the tonestack to get a more midrangey, raw sound opposed to the AC30 voicing – absolutely awesome. Best amp! This is what it looks like… Continue reading