modular analog synthesizer for electronic music
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 Q142  Pedal Interface

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The Q142 pedal interface offers a way for foot pedals (actually any switch or potentiometer) to control your synthesizer.  Each of the two independent sections allow simple switch pedals or variable pedals to create control voltages that can be used to control virtually any module in the system.  Control volume, filter sweep, pitch bend, pan/fade, and more.  Various voltage levels and polarities are produced for each pedal.

Connectors

    Pedal Input
      Accepts switch or variable pedal inputs.
    0/+5 Out
      Provides an output from 0v to +5v.
    +5/0 Out
      Provides an output from +5v to 0v.
    -5/+5 Out
      Provides an output from -5v to +5v.

Specifications
Panel Size:  Single width 2.125"w x 8.75"h.
Input Type: Dry contact switch, or 10k-100k potentiometer
Output Voltages: 0V to 5V, 5V to 0VDC, -5V to +5V
Power:  +15V@8ma, -15V@8ma.

Price
$80.00 US.

Usage and Patch Tips

Basics
There are 2 independent sections to the Q142 pedal interface.

Switch Pedals
Many switch pedals have an option for normally closed or normally open operation. This is not very important because the Q142 can offer both polarity of output voltages at the same time. Use the 0/+5 outputs to start/stop the Q119 sequencer, envelope generators, or to control a slew limiter or switch modules. The +5 output can also be used to turn on an amplifier or select a Pan/Fade condition.

Variable Pedals
Variable pedals provide continuous control of a parameter. Normally this will be the -5/+5 output, then attenuate the signal on the module. If the module doesn't have an attenuator, use the Q125 Signal Processor. Variable pedals are great for controlling filter frequency and resonance. You can also control an amplifier to mix in another patch or a Pan/Fade module to switch between voices. Variable pedals can also be used to trigger modules. Most modules that accept a gate signal will trigger at 1.5 volts.



PC Joystick Adapter
Use the QPCJA Joystick adapter cable to control your synthesizer using a standard PC joystick. The adapter cable breaks out the X axis, Y axis, switch #1, and switch #2 signals which can then be patched through a Q142 pedal interface to create control voltages and gate signals. Control filter sweeps, modulation depths, sequencer on/off, etc. To capture all 4 signals you will need 2 Q142 modules. Cables are 12" long. User must provide PC Joystick with 15 pin D-Sub connector.

Price
$35.00 US.



End of Product Information