The Amp Garage

Here's something I once tried in another amp with pretty good results. It's an semi active treble control where one side acts as the common lowpass called "bright control" and the other side of the pot is a variable cathode bypass cap which boosts the upper frequencies. In the middle position of the...

One thing you might run into is the first stage could potentially distort the CF, making it harder to get clean sounds, especially if you're using very high output pickups. So you may have to make adjustments for that. I've considered a similar circuit in the past and that was one of the things tha...

Hi, I came across the Komet Concorde schematic and always liked the sound samples I've heard from that amps. When I saw that there were only 3 triodes used in the preamp section, I thought about a DC-coupled cathode follower for the first stage and to archive even more gain I'd like to bootstrap it ...