SCHEMATICS

Original Schematic

Modified Schematic

1. ******SPST toggle switch added for kill-dry function

2. *55k(39k), **55k(39k) and ***20k(1k) resistors changed for level matching between high-pass mode and low-pass mode

3. ****10k resistor added for slightly cutting off low end  on low-pass mode

4. *****100k resistor added to 100k Level potentiometer in parallel for preventing the output from easily distorted when turning the pot past 12 o'clock

All things are done just to my taste, so please do not take it seriously.

FRONT PANEL LAYOUT