Skrydstrup R&D Overdrive ODR-2

May as well add this one too :o)  The layout actually ended up looking quite different but this is very obviously a Cornish SS-2 clone, at a similar sort of price.  There are some differences which I expect will make them noticeably different, so this is probably still worth building even if you build the SS-2 as well, but I certainly wouldn't expect them to be worlds apart in tone.  It would be nice to critically compare the two though.

The same applies as with the SS-2, this is designed with true bypass switching in mind, but if you do want to build it with the buffered bypass, then make a daughterboard of the Cornish Buffer.  The input socket connects directly to the input of the bypass buffer.  The output of the bypass buffer then goes to ODR-2 input and daisy chains to the 3PDT stomp switch, lugs 1 and 4.  The output of the ODR-2 will go to 3PDT lugs 3 and 6, and the output socket connects to 3PDT lugs 2 and 5.

The third pole of the 3PDT is used for LED switching as usual.

Info about the original Cornish copy:

Skrydstrup R&D Overdrive ODR-2
The ODR2 is a smooth, dynamic overdrive unit designed to emulate the overdrive sounds of our highly recognized OD50 Tube Amplifier.

This unit is perfect for overdrive tones ranging from a semi-cranked AC30 to the sound of Hendrix.

The TONE control is not a traditional tone control, but a High Frequency Damping control. Turned all the way up the TONE control is not active.