FOREST GREEN COMPRESSOR (FGC) is designed to meet the highest standards of guitar and bass compression. There is extremely low noise throughout the range and a high overload margin, which allows also a wide dynamic input range at minimum distortion and noise. FGC is equipped with a special tone control to fine-tune the compressed sound for most transparent tone and effect. The pedal has a switchable compressor and sustainer mode. In Sustain mode you can get a very dynamic, touch sensitive tone with a long sustain. Here the attack is not lost, making the pedal suit-able even for blues players and works great with slide playing.
I've made 2 versions of the layout, one with SGD pinout for the 2SK170, and another with the more common GSD pinout for other JFETs (J201, 2N5457, etc)