A request by KG who also provided lots of useful information and a schematics for this. A bit more simple version of the DIYRE Tape Saturator circuit using op amps and there is no need for a rack circuitry.
The circuit is supposed to run on 16v / -16v so there is an onboard bipolar voltage doubler although it only gives out around 15v /-15v but it is close enough.
Info about the circuit HERE.
‘
‘
