Start with section 1

1. Set [FEEDBACK] to minimum
2. Patch a 440Hz 5VAC triangle wave in to [IN]
3. Monitor [LEFT REVERB]
4. Adjust P101 until the peak output is approximately 5VAC
5. Turn P103 fully anticlockwise
6. Set [FEEDBACK] to '8'
7. Adjust P103 until the output just starts to go in to 'overdrive' where the signal starts to build up on itself.

Repeat for section 2

1. Set [FEEDBACK] to minimum
2. Patch a 440Hz 5VAC triangle wave in to [IN]
3. Monitor [LEFT REVERB]
4. Adjust P201 until the peak output is approximately 5VAC
5. Turn P203 fully anticlockwise
6. Set [FEEDBACK] to '8'
7. Adjust P203 until the output just starts to go in to 'overdrive' where the signal starts to build up on itself.