I found a really bad copy online some time a go but managed to pull what I think is correct from the text. Hopefully it’s readable with the formatting.

Operating Instructions:

This totally new accessory for electric guitar or bass permits
many synthesizer effects to be duplicated in live performance.
Separately adjustable attack, decay, harmonic content and direct
signal blend can be set to (yield?) tape reverse effects, slap echo,
complex envelope modulation, sharp chops or synthesized violin,
cello, string bass, toy piano, piano, banjo, horns, etc.

Plug the unit into an AC-outlet and turn it ON. Coinnect your
instrument to the input jack, amplifier to the output. Unmodified
signal is available at the DIRECT output and at the effect output
alterenating with the processed signal when the footswitch is
thrown. Operation is most reliable when only the rhythm pick-up
is used and the guitar volume is at or near maximum.

Set SENSITIVITY about 1/3 of the way up, HARMONICS all the way
down, BLEND fully clockwise (proceeded signal only), and ATTACK
and DECAY about 1/3 up. Play a single note and if no effect is
heard, throw the footswitch. The attack-decay should be heard,
and the infinite variety of effects possible by varying the
controls can be explored.

The best setting for the SENSITIVITY control is where it triggers
Reliably for notes on the high strings but doesn´t multiple-trigger
When playing the lowest string. Once found this setting should
not be changed. This unit works best for single notes and some
basic two-string chords; complex or discordant chords will cause
multiple triggering. The EDGE switch adds bite to the effect of the HARMONICS control.

EFFECT CONTROL SETTINGS

Attack Decay Harmonics Blend

Tape medium or minimum as desired processed signal
reverse long only
Slap echo minimum short or med as desired midway
Modulated short or med min to med as desired as desired
envelope
Sustain* minimum maximum as desired processed sig only
Chops min or short short or min as desired processed sig only
Violin, medium med or long as desired processed sig only
Cello
Acoustic min or short medium as desired as desired
bass
Bowed bass medium medium as desired processed sig only
Toy Piano minimum short med or high processed sig only
Piano minimum medium medium processed sig only
Banjo minimum short maximum processed sig only
Horns min or short maximum med or high processed sig only
(EDGE on)
* Set SENSITIVITY at or near maximum