ADA MP1 channel pedal

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
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Resistor Ronker
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Post by caspercody »


I have been looking for a schematic for the ADA MP1 channel pedal, but no luck. This is the tube pedal. I looked at the VAULT (, and contacted MarshallJMP who sells parts for the old ADA devices.

I also looked to purchase one the pedals, but I do not see them for sale.

Please let me know if you have a schematic you could share, or maybe someone that has one and would be willing to take pictures.


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