[sdiy] Welcome to the Twilight Zone
harrybissell
harrybissell at prodigy.net
Mon Apr 4 02:04:38 CEST 2005
we established (we think) you was in the parking lot... :^P
I have to agree with Ken, even if you were not dreaming (one way
or the other) late night is always a spooky (suspicious) time.
I do some of my worst work at night :^P
H^) harry
Peter Grenader wrote:
> Late had nothin; to do with this one...i wasn't dreamin!
>
> > Here's the clue :
> >> Thought I'd share a bit of bizarro behavior which occurred late last night.
> >
> > ____________________________________________________________^^^^^^^^^^^^^^^
> >
> > I never do anything that late because by brain starts thinking things should
> > be the other way around to what they are, or are around the other way to
> > what they should be.
> >
> > Either that, or you accidently shorted out an inverter in the input summer.
> > this thing is vero after all.
> >
> > Ken
> >
> >> 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
> >>
> >>
> > _______________________________________________________________________
> > Ken Stone sasami at hotkey.net.au or sasami at cgs.synth.net
> > Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> > Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
> >
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