Left-Hand Controller - Moog Minimoog Operation Manual

EXTERNAL CONTROL OF GLIDE AND FINAL DECAY.
The rocker switches in the left hand controller section have replaced the momentary push but-
tons used previously. Jacks have been added so that the performer can connect foot switches
to engage GLIDE and DECAY functions. R. A. Moog will soon make these momentary
switches available as an accessory.
With no external switch connected and the GLIDE switch turned off there will be no porta-
mento. When the GLIDE switch is turned on the pitch will glide between notes at a rate set
by control (2) (see controllers section, paragraph 12). When the performer connects the ex-
ternal foot switch, he can momentarily engage portamento when the GLIDE switch is off by
depressing the switch button. The foot switch has no effect if the GLIDE switch is already
on. The external control of the DECAY function works in an analogous fashion.
To prevent confusion of the external foot switch cords with input and output audio and con-
trol voltage cords, the jacks for DECAY and GLIDE are 0.206" dia. instead of 0.250" dia.
The jacks mate with Switchcraft S-260 plugs instead of ordinary 1/4" phone plugs.
The external switch is a normally closed type. It opens when the button is depressed.
Ring
Tip
Sleeve
It is possible to connect a foot pedal rather than foot switch to the GLIDE jack. With the
GLIDE switch set to "off" one can adjust the portamento speed to any value faster than that
set by control (2). (The foot pedals used for volume, filter, and oscillators will not work for
this purpose.)
Similarly one can wire an external foot pedal to adjust DECAY to any value faster than the
time set by control (21) or (24).
A photoresistor can be used in place of a potentiometer.
LEFT HAND CONTROLLER
TYPICAL S-260 JACK
Two conductor shielded cable
N. C. Contact
Switch
(audio taper)
R = 10 M (glide)
R = 2.5 M (decay)
July, 1971
70-019