DOD FX75 Flanger Guitar Effect Pedal

This is the circuit diagram of DOD FX75 Flanger guitar effect pedal. The circuit drawn by Fabian P. Hartery Components description: CD4007 dual complementary pair with inverter; (RCA) TL022C low power dual operating amplifier; (texas instruments) MN3007 audio signal delay, 1024 stage low noise BBD (5.12-51.2 msec delay) MN3101 clock generator for Bucket Brigade Device/BBD MN3101/MN3007 manfufactured by Panasonic; these are equivalent To ECG1639/ECG1641 respectfully