Switchcraft

Switchcraft #12B

¼-inch open-frame stereo jack for battery switching

Output jack

The ring contact closes the battery negative to ground only while a mono plug is inserted, so active pickups switch off when unplugged.

Connections at a glance

Use the terminal labels below when planning your circuit. Check the manufacturer's documentation for your exact component revision.

TerminalLabelRoleLead colour
tipTip (signal)Jack tip
sleeveSleeve (ground)Jack sleeve · Ground
ringRing (battery switch)Jack ring
This catalog is a reference, not a retailer. Component illustrations are schematic, not product photographs. Always confirm the exact model and manufacturer specifications before purchase or soldering.

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