Used BOSS AB-2 2-Way A/B Selector Pedal MODIFIED for AC Adapter 

Very clean lightly USED BOSS A/B Switch, in perfect working condition.  This was used for selecting between electric-acoustic and electric guitar.  It provides silent switching with no audible “pops”.  Verify minor scratches from use.  The box was a little beat up and has been taped together.

Tired of changing batteries?  This unit has been modified to work with a 120VAC 3VDC AC Adapter as well as batteries (use one or the other, but not both at the same time!)  Note:  BATTERIES NOT INCLUDED, Sold “as is”.

Includes:

A/B Switch Unit
120VAC 3VDC AC Adapter
Original BOX (damaged)
Manual

Product Description
The BOSS AB-2 is a 2-way selector that makes changing inputs or outputs easy. One stomp is all it takes to instantly switch between two guitars or effects setups, change amplifiers or switch between an amp and tuner. Rock-solid BOSS construction ensures the AB-2 will stand the test of time.  The AB-2 features a silent FET switching which eliminates popping sounds when switching between guitars or switching between amps.
•    Affordable A/B selector with 1-click operation and silent switching
•    2-way selector for using A/B input with one output, or vice-versa
•    Instantly change guitars, effects setups or amplifiers, or switch between an amp and tuner

Specifications
Model:  AB-2
Nominal Input Level:-20 dBu
Nominal Output Level:-20 dBu
Control: Pedal Indicators: A (red), B (yellow)
Connectors: A jack, B jack, IN/OUT jack
Current Draw: 5 mA or less
Expected battery life under continuous use, Carbon: 100 hours
Power Supply: Dry Battery (R03/LR03 (AAA) type) x 2
Dimensions:96 (W) x 90 (D) x 43 (H) mm3-13-16 (W) x 3-9/16 (D) x 1-3/4 (H) inches
Weight:240 g/ 9 oz
Accessories: Owner’s Manual