Whirlwind Selector Active A/B Switch Box

Morley ABY Selector Pedal / Switch

SONICAKE Portal Active Signal Mixer Analog Line Selector as ABY FX Loop Pedals

1970s DOD AB 270 Box Selector Switch Guitar Pedal 2 Guitar Amps or Channels

Guitar Effects Loop Switcher Pedal Passive Channel Selector Box 3 Inputs

Whirlwind Selector A/B Box , Used Untested

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Guitar Effects Loop Switcher Passive Channel Switcher Box ABY Box Line Selector