[sdiy] Welcome to the Twilight Zone

[harrybissell]

Hah ! and its night too

(well at least here in detroit :^)

H^) harry

Peter Grenader wrote:

> Well...it just happened again.  I had the system off for a while, turned it
> back on and bang.  Remember now, 'let me make myself perfectly clear' this
> is the prototype we're talking about.
>
> harrybissell wrote:
>
> > 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/>
> >>>
> >