> Hi Dieter
>
> > That's an interesting option and would not take more than a few hours to
> > develop (noting but a slimmed A-143-1).
> nope. Its not only an AD envelope like in the 143! It is on one hand an
> AD (not gate orientated, but triggered only by a positive edge), and on
> the other hand a gate orientated AR envelope like the A170.

Yes I know. But it's easy to change the AD mode to AR (the other way round
would be more difficult because a comparatur and a flipflop are required).

Dieter