Ok, let's release the beast. Two layouts. One stock for iether Bass or Lead cap values.
And another one with a Beta/Lead switch. Since I'm not a big fan of offboard wiring I decidied to simplify things a bit. Lead cap values is always in circuit and with a 4PDT switch you can switch in four caps in parallel so it matches up with Bass values. Some values differs in few hundred pico farad or a few nano farad but the overall difference is minimal. And in theory you could use a SPST switch....
It also has an onboard charge pump for 15v/-15 operation.
This going to be the last layout I will post in a while since I'm going back to work tomorrow but this and a few other layouts should keep some of you occupied....;-)
*Edit*
MTK once again outdid himself! Here is a short demo of Lead/Bass switch version.
Stock layout.
