Doepfer

Hi Ernst,

> Is my unit wrongly ajusted? If not, is there a known way to reajust 
the a117 ?

Sounds very similar to mine on its slowest setting, so I don't think 
yours is wrongly adjusted.

A few thoughts:

You should be able to clock it with a slow-running external clock 
(there is a small chance that the output stops running completely if 
you try this, but there should be a factory-fitted mod - an extra 
resistor - to help stop this happening).

If you wanted to slow it down permanently, it would be easy to add a 
capacitor across the timing capacitor in the internal oscillator. 
Without any extra capacitors, mine runs from about 86Hz to about 
67kHz. By temporarily adding an extra cap, I was able to slow it down 
by various amounts:

+220nF gives 5.4Hz to 4.5kHz
+1uF gives 1.3Hz to 1kHz
+10uF gives 0.14Hz to 122Hz

If you want any more details about how to do this, let me know.

Tim