Passive A/B/Y Switchers
Passive A/B/Y switchers are typically used to switch 1 guitar and two amplifiers. They allow the output to be routed to either amplifier (A/B) or both (Y).
In cases where there is excessive hum or signal attenuation an active device may be required.
Links
- DIY Musikding Text is in German but the schematic is easy to understand.
- singlecoil.com Two variants, one without LEDs and one with.
