Doepfer

Hello everyone.

This week I had a very profitable a100 second hand buy.
Among all the goodies were two A111 VCOs.

I have connected both and immediately found out they were both out of tune with each 
other and with my a110s. 

I also noticed on my oscilloscope that the sawtooth from these babies is a rising one 
instead of a falling.. this is normal eh??

But the most scary thing is that one of the a111s has a clear defect.
If I turn the Pulse Width knob above the 5 position it starts to influence the pitch and the 
amplitude of the sine, saw and triangle waveforms!! 

I have been trying to tune the oscillators but I first would like to know the whole story 
before I continue...

Thanks,

Ernst