That's one of my 'always-used' modules. The power switch is lighted
and controls a 2U panel on the rear that has AC mains in and switched
AC mains out. That way I can control all of my cabinets from a
single
switch. I also added DC out with fuses on these power panels for
powering remote devices if needed. The headphone amp is nice and the
cable tester was built after frustration with a batch of bad cables.
It tests continuity for low ohms and shorts.
I have designed or borrowd and modified a number of circuits to add
to
my modules. Other modules in the parent directory include:
Spring reverb, 3 input mixer, output attenuator, and an A-440
reference generator. This is always used as I like a bit of spring
reverb on all my patches. The A-440 is also nice and often used.
Mixer-Comparator-FWR. This is basically the Richard Brewster module
but I added a Full Wave Rectifier with either AC or DC coupling. I
use the comparator a lot and the FWR is nice for sharpening up some
mellow sounds.
Dual LED voltage monitor. This allows me to visually see waveforms
such as LFOs and envelopes. It has dual channels and is similar to
the one that Scott Juskiw also designed.
Analogic is my favorite. I wanted a OR, AND, NOR, NAND circuit for
gates and designed a 3 input analog version. It will take the
greater
or lesser of three signals and also has an invertor. For logic
levels
it functions as an OR or AND with an invertor. For analog or audio
signals the output follows the greater or lesser voltage. Mixing two
distinct waveforms like a sine and saw at slightly off frequencies
outputs some distinctive sounds.
Quantizer and lag. This is a dual quantizer followed by a lag
circuit. It is similar to the Arp-style quantizer and works quite
nicely.
Tape Output. This is a level convertor for -10 dB outputs and inputs
for my analog reel to reel. It includes a polarity reverse as my
Otari outputs are opposite sense from the inputs. It also includes a
mixer between line out and line in with a feedback control so I can
easily do tape delays and echoes.
Ribbon interface. This is a repackaged PAiA MIDI2CV with an analog
offset and mixer for the Kurzweil Expressionmate ribbon.
Attenuators are just three 100K potentiometers for attenuation. Also
nice for driving -10 dB levels.
Output is a dual VCA and output level control for driving my Carver
power amp. It has remote power so my single switch also controls the
power amp. The VCA is typically driven with my MOTM-850 pedal
interface so I have an overall pedal volume.
The Sound Canvas is a repackaged SC-7 full GM synth that I can drive
with the MIDI out from my PSIM. I really like this module and the
PSIM combination.
The level shift module is also used with my PSIM to be able to
convert
the inputs and outputs to +/- 5 volt levels.
The last is my keyboard interface which is really just multiples and
power designed to interface with the Hendry 822 VC Switcher and I use
it with my Arp 3604 CV keyboard.
Enjoy. - Dave
--- In motm@yahoogroups.com, Tentochi <tentochi2003@y...> wrote:
> http://home.earthlink.net/~dabr/davebr/MOTM/DJB-006%20Control/DJB-
006.jpg
>
> FP power switch (and easier to see in the dark)
> cable tester
> headphone amp
>
> --Shemp