from the operating manual
- Plug booster into receptacle on guitar with jack on booster facing end pin of guitar.
- Plug cable from amplifier input into booster jack. Use short leather strap provided, to anchor cable to guitar end pin.
- With switch in OFF position, guitar is connected directly to amplifier.
- Booster operates with switch in ON position. Rotate knob "clockwise" for TREBLE boost effect, or "counterclockwise" for BASS boost.
No forum threads about this effect yet.