Moog Music MF-104Z Analog Delay - Manual (Page 20)

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about 300 milliamperes of
current. You can power your MF-
104Z from virtually any power
adapter which has a nominal
rating of between +9V and +12V
at a rated current of at least 300
milliamperes, and has the
appropriate power connector.
If you ever use a power
source other than that supplied
with your MF-104Z, be sure that
the voltage never exceeds +15 volts. Power sources with voltages in
excess of +15 volts may cause serious damage to the MF-104Z's
circuit.
PEDAL/CONTROL JACKS:
All three pedal/control jacks are 1/4" tip-ring-sleeve (stereo)
phone jacks. The sleeves are grounded and the ring terminals are
supplied with +5.0 volts which is current-limited to about 0.5
milliamperes. The tip terminals receive the variable voltages from the
pedals.
An expression pedal for use with the MF-104Z should contain a
50K ohm or 100K ohm potentiometer which is connected from the
sleeve to the ring terminals. The potentiometer wiper is connected to
the tip terminal. The pedal cable should be shielded with the shield
connected to the sleeve terminal. See Figure 10.
When connecting one or more pedal/control jacks to a source of
external control voltage such as an analog synth or a MIDI-to-CV
converter, you should use patch cords with tip-ring-sleeve phone
plugs. The ring terminal should not be connected to anything, so that
the MF-104Z's source of +5.0 volts is not shorted out. Or, if you do
not plan to use any expression pedals with your MF-104Z but would
like to apply external control voltages to one or more pedal/control
inputs, you can use patch cords with regular two-conductor phone
plugs. These will short out the +5.0 volt supply to the ring contacts.
This voltage is current limited, so you won't burn anything out, - but
Figure 11 - Correct wiring of a tip-ring -
sleeve plug for connecting a pedal
control input to a source of external
control voltage.