does anyone know of an low frequency oscillator design that would give
me an output similar to what is in the graph below?
http://www.etanstudios.com/images/dualoutoscgraph.gifi've been working on this project for months now and i'm ready to rip my
hair out. here's the scenario, i have two slide projectors, i've built
dimmers for both lamps that accept a DC control voltage of up to 10VDC.
what i want the projectors to do is similar to what a dissolve unit
does, but at a variable rate of speed (0.1 Hz to 10Hz triangle wave) the
voltage of output number one needs to start high and drop to zero, at
the same time output 2 needs to start at zero and end up high in sync
with output 1 going to zero. (the chart explains it better than i can) i
cannot for the life of me figure out how to keep the entire triangle
wave in the positive realm, nor have i been able to figure out an
inverter to get output 2. i'm not that bright when it comes to
electrical design, so any help would be appreciated... hell, i'll even
pay someone (within reason) to draw up a schematic for me. if anyone has
any insight into this, please email me privately so we don't piss off
paul. and this is slightly synth related as we use this projection
system during our shows, in which i am using the MOTM system (yeah, I
know, that doesn't cut it...) thanks to everyone in advance for your
help and tolerance. -nate