Vintage Simmons Drums (UK) Users Group

Hi simmons users

im looking to do something with a TOM TOM card in my simmons SDSV 
brain.  I have bought an old vintage wooden box (an old 
potientiometer) and i am going to put the card in to the box and 
hopefully add some more electronics (FX etc). I am still in the design 
stages at the moment and i have a few questions for those in the know.
......

1 are there any major worries with modifing the SDSV cards - fragility 
etc

2. are there any schematics available on the web>?

3. What voltage is needed to supply the card

4. What are ther min/max voltage created by the piezo electric in the 
pad?

thanks... ill keep you updated on the project

acslade