hi richard, no this is not a defect. my a155 is an older one too and it does the
same thing when clocked w a sawtooth wave. i use it this way often!
-psm



--- In Doepfer_a100@yahoogroups.com , "phaeton777" <phaeton777@y...>
wrote:

> I have 2 A-155s. One is an older model and one is is brand new. I
> lent the older one to a friend who is learning about modulars and he
> discovered a strange anomaly:
>
> When an A-145 sawtooth wave is used as the clock, the A-155 will step
> randomnly through its 8 steps. I stood watching it for 20 minutes and
> sure enough-its randomn!
>
> This only happens with the older A-155. The newer one just steps in
> sequence.
>
> Do I have a pleasantly defective A-155
>
> Richard.