> Florian, I reread what you said and now I understand it better.
>
> So I want an a-165 to convert a gate into a trigger spike. Does the
> A-165 convert both the GATE ON and GATE OFF signals into trigger
> spikes So that's why I need an a-166 to make the A-165 only send out
> a trigger spike on the GATE ON of the gate signal from my A-190 midi
> interface

Provided that you own an A-162 Dual Trigger Delay and are a bit experienced
with electronics e.g. the second unit of the A-162 can be modified very
easily for shorter trigger lenght. Finally each unit of the A-162 is nothing
but two daisy-chained gate-to-trigger converters with adjustable trigger
lengths. From the factory the time range is about 2 ms ... 10 s. But it can
be modified if C2 and/or C5 are replaced by smaller values. For details
please refer to the updated A-162 info page and the updated document "Timing
capacitors of A-100 modules" (www.doepfer.com > PRODUCTS > A-100 > DIY page

> Timing capacitors ...).

Best wishes
Dieter Doepfer