I’ve decided to make a complete set of the Mad Professor designs that have been traced out. I’m a massive fan of Bjorn’s designs and always enjoy seeing all the little tricks he puts into each of his pedals. Here is the “Ruby Red Booster” traced over at freestompboxes.org; http://freestompboxes.org/viewtopic.php?f=7&t=13106 . WhiteKeyHole takes the credit for the schematic :
Here is some interesting text from the Mad Professor Website;
“The two boosters are based on the much sought after BJF Little Red Trebler and Red Rooster Booster, connected in that order and with a master volume control.
The RRB can be used as a treble booster, a clean boost or an overdrive unit or any combination of the above. Inside the pedal there is a switch for a high quality buffer. You can set the pedal for true bypass mode or “buffer on” in bypass mode. The Treble Booster is a fine-tuned booster for just the right treble frequency with carefully designed bandwidth and an optimized slope of bass cut.”