user manual

6
GETTING STARTED
We are about to embark on a tour of your CP251's functions. To do this, you'll need
the following items:
• Your CP251,
• A tone generator of some sort, whose frequency is voltage-controlled,
• An expression pedal such as the moogerfooger EP-1,
• Six or eight short (1’-3’) patch cords with ¼” phone plugs,
• A monitor amplifier-speaker.
We’ll feed the CP251’s signals into the tone generator’s frequency control input, and
then listen to how the generator’s pitch changes. This will help us visualize the CP251’s
signals. In the rest of this manual, we’ll use VCTG as an abbreviation for “ Voltage
Controlled Tone Generator”.
What can you use as the VCTG? Here are three candidates:
•Use an analog synthesizer with a pitch control input. The classic Minimoog™ and
Micromoog™ are good examples. Set the instrument so it produces a steady tone at a
pitch of around middle C, and apply the CP251’s signals to the instrument’s pitch
control input.
•Use a moogerfooger MF101 Lowpass Filter. Set MIX to 10, CUTOFF to 250, and
RESONANCE to 10. (These settings cause the filter to oscillate at its cutoff frequency.)
Use the CUTOFF jack as the pitch control input, and patch the filter’s AUDIO OUT to the
input of your amplifier.
•Use the Carrier Oscillator section of a moogerfooger MF102 Ring Modulator. Set the
MF102’s LO-HI switch to HI and the FREQUENCY knob slightly above 120. Use the FREQ.
jack as the pitch control input, and patch the CARRIER OUT jack to the input of your
amplifier.
Setting up for the Tour:
Unpack your CP251. Set it next to your VCTG. Have your supply of short patch cords
handy. Connect an audio cable from the tone generator’s output to your monitor
amplifier’s input. Turn up the amplifier’s gain just enough to verify that you’re getting a
tone.
Verify that your power adapter has a nominal rating of +9 volts. Plug the power
adapter’s cord into either power receptacle on the CP251 (There is a power receptacle
on the back panel, below the moogerfooger trademark, and another receptacle on
the CP251’s bottom panel.) Then plug the power adapter itself into a power voltage