Vintage Simmons Drums (UK) Users Group

michael b:
> the selector pad is nothing but 16 contactswitches and a wired x/y-matrix. 
> Wiring is (measured at the plugs pins): Pin 4,3,1,2 is matrix y and 
> 7,6,5,8 matrix x direction. If you connect for example pin 4 and pin 7, 
> SDS7 will switch to prg 1, pins 2 and 8 will result in prg 16. Pins 9 and 
> 10 are chassis ground only. The selectors plug is not very special, it is 
> a standart video camera plug.
>
> There are no triggers like piezos inside and as far as I know, the SDS7 
> doesn't respond to trigger signals on the selector socket.

I'll remember this if I ever buy a decently priced SDS-7.

Some OT but interesting info - It's amazing how cheap the solutions were 
(and are) in the music industry sometimes. I have a Star Instrument Synare 
PS-1 on the workbench so to speak and the triggering system is cheapest 
possible with two sheets of aluminium and some sticky tape holding the 
pieces together but also half a millimeter apart. When hit with a stick they 
make contact and sound is triggered.

electronically yours, jesper
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