Joe Davisson's CCS mode..

[antonis]

https://www.diystompboxes.com/analogalchemy/old/ccsdrive.gif

Nothing special, just a few mods..
Mainly the addition of 2 more NFB caps (selectable via SPDT switch - ON-OFF-ON) significally altering signal waveform..
Also, Q2 bias raised (not essential but more pleasing to the eye.. ) and output buffer added..



And, of course, layout..
With 2 more rows there shouldn't be any flying jumper (other than the ones connected to SW) but 23 X 9 scrap board was already handy..



edit: There is a discrepancy between schematic C10(220μF) and 47μF on layout..
(I beg your pardon for this..)

[GibsonGM]

How did I miss this one??  Nice mods, Antonis!   

[antonis]

Thanx Mike..

To be honest, Q3 output buffer isn't essential but it only takes up 5 pads space and costs nothing..