Moog System 15 Instruction Manual page 18

H. THE 921 VOLTAGE CONTROLLED OSCILLATOR CLAMPING
POINT
The CLAMPING POINT section of the 921 VOLTAGE CONTROLLED OSCILLATOR al-
lows the waveform to be brought abruptly, or "clamped", to a manually selected point in its
cycle at the onset of a trigger signal.
1. Arrange the controls and patchcords as indicated.
2. A sub-audio sawtooth wave is controlling the frequency of the 921B waveform. Set the
CLAMPING POINT on 50 and strike keys at random time intervals. With each new trigger
the ramp will begin at the point designated by the CLAMPING POINT control. Experiment
with various clamping point settings and all controlling waveforms.
3. Remove the trigger cable and note that the CLAMPING POINT control has no effect on
the waveforms now.
907A 995
0 0
8'
50
921A 921B 921B 923
MIXER REV
904A 902 902
0 8'
R
50 10
921 911 911
CONTROLLERS TRUNK