VCO fail? impossible to tune...

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elhambre
 
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Joined: Mon Oct 22, 2012 10:07 am

VCO fail? impossible to tune...

Post by elhambre »

Hi, i buyed a non adafruit XoX almost builded, sourced a couple of components lost, tempo encoder and a bunch of resistors.

Finished, and everything is ok, sequencing and midi out works fine. But tuning is impossible, after trying a lot and with help of experimented people. Lower octave ranges from C to E, next from E to A, netx A to D...

So maybe is something not correct on the VCO,revisited all the resistors, transitors, diodes and seems to be ok. Any idea of what could happen??

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mmm
 
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Joined: Tue Apr 24, 2012 1:51 am

Re: VCO fail? impossible to tune...

Post by mmm »

Is the CV the correct 1V/octave? You can measure this directly at the CV output.

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