Vintage Simmons Drums (UK) Users Group

Hi!

> 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.
> ......

Shoot.

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

Not really - if you're the least skilled in soldering. You can always
destroy an IC but normally there shouldn't be any problem.

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

Nope, sold expensive here and there. Let me know if you need copies of
mine... ;)

> 3. What voltage is needed to supply the card

+/- 15 I think, but I have to double check that...

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

0,1-1,5 (same as above), 1-7 (approx) if using the sequencer input
sockets...

> thanks... ill keep you updated on the project

Yes, please do!


electronically yours, jesper
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www.electronic-obsession.se

ok thanks for your help jester - help is definately appreciated as
this is my next project after bending a few Speak and Spells.

Thanks for your offer of the schematics - they may come in handy.

I am going to try to create a monosynth in a box, im fine with a few
things but not so hot on others - like an idea how to implement the
triggering of the card in 'monosynth box' - a drum pad from the
simmons is not really practical - perhaps i could trigger it with
someting else?

other power issues i will discuss later

thanks again

Hi!

> ok thanks for your help jester -

How come everyone calls me Jester or Jasper outside the nordic countries?
I'm not that worried about such issues, but Jesper it is... ;)

> help is definately appreciated as
> this is my next project after bending a few Speak and Spells.

OK... remember seeing one cool bent SaS on Ebay. It was camouflagecoloured
and had a "speaking in tongues-switch". Liked that one... ;)

> I am going to try to create a monosynth in a box, im fine with a few
> things but not so hot on others - like an idea how to implement the
> triggering of the card in 'monosynth box' - a drum pad from the
> simmons is not really practical - perhaps i could trigger it with
> someting else?

I have a friend who is messing around with an SDS-800. It should be a better
idea for someone like you since it uses Curtischips and not SSM. Curtisis
more of a "synth-on-a-chip" type so they're more easy to get something cool
from.

But sure, a box with a home built pad on top maybe? Or why not a joystick, a
simple trigger and then trig speed in vertical control and amount of voltage
in horisontal maybe?

electronically yours, jesper - almost liked that idea though I would never
dream of stripping my fully equipped SDS-V...
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www.electronic-obsession.se