Doepfer

Hi Florian, Joe, Kevin, psm,

> > The A-155 as mentioned always resets to step 1 and starts at step 
2.
> I don't own the A-155, but I think this is normal for counter like 
also the
> A-161. A clock-transient at the counters clock-input causes the 
counter to
> advance for one step. If the counter was resetted before, it stands 
now at
> step 1 and the first advance will go to step 2.

This is precisely it - don't know why I didn't see it sooner. Thanks 
for the replies: as I mused in my reply to the original poster, 
basically it's something you have to live with. I still have a lot of 
experimentation to do, especially seeing if I can get a MIDI clock 
out of the PC.

Incidentally I have drafted out a circuit which will allow voltage-
controlled division of a clock signal (as the 163 if you put the zap 
on the coupling capacitor), but which is 'resettable' at the start of 
the cycle (which seemingly the 163 won't allow). This should allow 
the bottom row of the 155 to be used to define the current note 
length as an exact no. of multiples of the clock cycle (say from 1 up 
to 16) - thus taking the hit-and-miss approach out of using a VC LFO. 
Presumably when using MIDI clock signals one can set the clock cycles 
to be some multiple of the desired note lengths, so if 16 cycles was 
a 'standard' note length, then divide by 1 to 16 gives sixteenth 
notes up to 'standard' notes (?). Anyhow, I hope to order the bits in 
a day or two so that I can give it go.

Tim