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