Fuzzrite

Four resistors, four capacitors and two transistors (plus the usual hangarounds) and you can build this little circuit.

PCB and stripboard

Unconfirmed PCB layout.


Unconfirmed Stripboard layout. For component values and how to wire the potentiometers see PCB layout above.

Links

Correct schematic - Well claims to be anyway.
Thread with information about different versions of Fuzzrites