Hi argitoth

> If I plug a gate signal into the sync input of the A-111 VCO, will it
> reset the VCO every time the gate goes on With my Analogue Systems
> VCO, a gate signal does not reset the VCO. Instead it makes the VCO
> clicky and unusable. What I want to happen is that when there's a
> Gate-on signal, the VCO simply resets and continues instead of
> stopping like the Analogue Systems VCO.

The A110 and the A111 can be reset by a trigger to the sync-input.

The A110 expects a positive transition.

But the CEM3340-chip in the A111 expects a negative transition.


At both VCOs Dieter added a capacitor in series with to the sync in,
which will make a resetting trigger-spike from the start of the gate
and(!) from the end of the gate.
If you want to create drumsounds, you may provide extremely short gates.

If the gate is intended for a longer note (e.g bass sound), then the
best would be to get a gate to trigger converter, which produces a
trigger only from the start. You might send the gate to a A165 and then
combine the trigger-out with the gate in an AND-gate (A166). This
provides a trigger only at the start.

This should work also with te AS-VCO.

Florian