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Procedure:
Use the
VCO Out
jacks to calibrate each waveform in turn.
•
Square
o Sorry, you’re S.O.L.
3
here too. Carry on.
•
Ramp
—
LFSLEW
,
LFHI
,
LFLO
o The ramp is derived from the triangle by the annoyingly fiddly process of
inverting and level-shifting the triangle and attempting to get the two images
to line up. This can be very sensitive to component variances, hence the
multitude of trimmer potentiometers.
o
LFSLEW
Don’t touch this, please. Leave the pretty blue sticker alone. It is there
just in case it was needed, but it ended up not being needed. It’s on you to
fix if you touch it; it adjusts the slopes of the two halves of the ramp (fig. 16).
fig. 16, LFSLEW trimmer potentiometer adjustment.
o
LFHI
,
LFLO
these adjust the heights of the two halves relative to the zero Volt
baseline. If you touch one, you will likely need to touch the other. These are
annoying to deal with and must be adjusted carefully.
LFHI
adjust the position
of the upper half,
LFLO
the other half. If these need adjustment, I start with
LFHI
, bringing it near the 0V line, then adjust
LFLO
to bring the bottom up.
Both halves shift when adjusting each trimmer so, when you are close to both
being on the line, alternate between both trimmers using the smallest changes
possible.
fig. 17, LFHI, LFLO trimmer potentiometer adjustment.
•
Triangle
o IT’S FINE DAMMIT
4
.
3. Shit Out of Luck
4. This is the correct spelling, by the way. The “n” disappears when “damn” and “it” are
contracted together.
Summary of Contents for Infernal Noise Machine
Page 1: ...flight of harmony ...
Page 24: ...24 24 f h ...