Vintage Simmons Drums (UK) Users Group

Rodney wrote:
> Hello all!
> 
> I just finally got (after about a month) an SDS7 I got off
> ebay...well, needless to say I GOT RIPPED OFF!!!  I bought it as is,
> so I am basically screwed...BUT:
> 
> Despite the fact that it was beat to hell, & rusted (People that
> treat, not only Simmons Drum stuff, but ANY MUSICAL EQUIPMENT, LIKE
> THIS, SHOULD BE SHOT OR IMPRISONED!), AND it has NO VOICE CHIPS
> WHATSOEVER, it DOES seem to power up, and it has 5 channels in it:
> BASS, SNARE, and 3 TOMS...all of the IC chips are in it, and ONLY THE
> SOUND CHIPS ARE MISSING! (THANK GOD!)

If by "sound chips" you mean the EPROMs on the bottom front (left as you 
look at the component side) on each voice board, then it will still work 
on the analogue channel.  Obviously the digital channel won't make a sound.

You could put pretty much any 2764 or 27128 eprom in to try it.  I had 
some good results using an old PC BIOS chip in one of mine.  Very gritty 
and Industrial. ;-)

Gordon.