via this auction
"ROLAND TR-808 drum-machine bass drum clone.This clone is MIDI capable, and can be configured to response to any note on any midi channel.
MIDI Learn:
to program the midi channel and note, just press 10 second the TRIGGER button on pannel and release it. then send by midi to the unit the note you want it to remember as his midi channel and note.
By default the unit is programmed to response to CH10, Note C1.
TRIGGER INPUT
The clone can also by triggered by any other non midi drummachine, just plug in the jack input (TRIG IN) the trigger signal that come from a external triggering unit ( drum machine, synthesizer, or anything else )
MODS
the clone got some modifications extending the original tr808 bassdrum capability.
TONE POTENTIOMETER. (extended filter range)
DECAY POTENTIOMETER.. (Extended decay range, from very short cick to auto-oscillating)
PITCH POTENTIOMETER.. (Not present on the original, it allow to tune the pitch from lowest frequency to highest like high tom)
The unit is hand build by professional and is ready to be shipped world wide."
