MATRIXSYNTH: Vintage MTI Auto Orchestra Analog Drum Machine SN 01248


Sunday, July 01, 2012

Vintage MTI Auto Orchestra Analog Drum Machine SN 01248

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"It is being listed for parts or repair, please read the auction fully before bidding. No returns on this item. The major issue is that does power on, but I am unable to get any sounds out of it but some noise. I tried all the different outputs and nothing. So without getting any sound I am unable to test the unit any further...
Right above that tempo knob you can see a little jack for plugging in a rhythm module. I've seen a few different versions of this machine, and this is the one with that module jack so if you have or can find any of those rare rhythm cartridges, you can plug it in and access additional rhythms! I do not have any rhythm cartridges, but they do occasionally pop up here on eBay.

There is a sheet stapled to the inside that has some schematics and diagrams on how to calibrate the sounds on the boards. It will certainly come in handy for anyone who picks this up to restore."




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