Bob Sellon - Over the years I've repaired a number of these wonderful little delay units.Though I no longer service them, I do have a lot of experience with them and some documentation.
| - | Analog Circuitry |
| - | Digital Circuitry |
| - | Redrawn Timing Circuit |
| - | Redrawn Footpedal Interface Circuit |
| - | Redrawn Coarse Delay Circuit |
| - | Analog Board Layout |
| - | Digital Board Layout |