Questions

[Byron G. Jacquot]

>obstacle.  I've got a voltage regulator sending the thing +5v to the pin
>marked "+5v", ground to the ground pin - but there's a third pin marked
>"Vcc" or something similar, which I have no idea what to do with.  I'm
>certain it should be connected to something, but what voltage (or
>whatever) is unknown - also the trigger inputs - have been experimenting
>with +5v on a button-switch to see if I can trigger a noise of some
>type, but still nothing.  Anyone have a solution?

The power supply stiff here tells me what's missing: +12 or +15 V!

The drum tone board was designed to be dropped into a project with a single
ended supply, and uses +5 as a midpoint within the circuit.  You still need
to add +12 or +15 to fully power it up.

...but I've just flipped through my old manual, and don't see this mentioned
anywhere!

As for triggering, I was able to test mine with a little switch.  You might
also be able to trigger it directly from a little Radio-Shack piezo
transducer (about $3).  I also took a slow pulse train from a bench
oscillator, and had a very simple drum machine!

Byron Jacquot