[sdiy] Welcome to the Twilight Zone

[Kevin Lightner]

>Thought I'd share a bit of bizarro behavior which occurred late last night.
>
>When putzing around with the prototype Plan B (vector board) all of the
>knobs except the PWM and FM attenuator - the Freq, fine tune, even the two
>bipolar freq VC attenuators - suddenly operated in reverse.  Turning the
>freq pot CCW made the pitch higher.  Turning a freq VC attenuation pots
>fully CCW processed the VC fully positive (should be the other way around).
>
>Turned the power off - still there.  repeated that a few times - still
>there.  So then I put my VC Input through an external processor to invert in
>before it went to the VCO to see if I could fake the VCO out and when
>turning the offset knob on that processor in a  positive (more voltage)
>direction, I suddenly noticed that the controls returned the 'normal'
>operation on the VCO.
>
>They are all running off the same supply.  However, in the name of science
>and unparalleled universes, all of the effected controls do run through the
>same op amp internally (they are summed).
>
>Too weird and yes, I did check for flying donkeys outside and no, my cat did
>not begin to bark during this time.
>
>Now off sign to going I'm,
>
>
>- P



I think  this explains it....

http://money.cnn.com/2005/04/04/news/fortune500/gm_leadership/index.htm?cnn=yes



-- 
Regards,
Kevin Lightner

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