A/B/Y SWITCH BOX COMPLETE KIT

A complete kit for a passive A/B/Y switch box: pick channel A or B, or run both at once, with LEDs that always show where you are.

About this kit

This is a simple, passive 2-channel switcher. One switch chooses between the A and B channels, and another switches to both channels at the same time ("Y"). The circuit is passive except for the LED indicators. It grounds the unused input to keep things quiet, and because it's passive, the two channels can work as either inputs or outputs, so you can use it to split one guitar to two amps or to choose between two sources.

The kit has 3 LED indicators. When you're in "Y" mode you can still see which channel you'll be on when you switch out of "Y" mode. If you need a buffered version, the project page shows active A/B/Y designs using the ICBUF or Dual ICBUF PCBs; note that adding active parts makes the box non-reversible.

What you get

All the parts you need to build the passive A/B/Y switch box.

• 125B: enclosure drilled per the A/B/Y specification sheet below.
• No Enclosure: all the kit parts without the box, for builders who want to use their own enclosure.

Build resources

• Complete instructions for this kit
• 125B enclosure specification sheet
• General information about GGG kits