SWITCHCRAFT 12A NORMALLY-CLOSED JACK

A Switchcraft 12A normally-closed jack, used for amplifier input jacks and great for expression pedal jacks on stompboxes.

About this part

The Switchcraft 12A is a jack with a normally-closed switch contact, which makes it useful anywhere a circuit should change when a plug is inserted. It's commonly used for amplifier input jacks, and it's also great for expression pedal option jacks. For example, a stompbox volume control could be overridden when an expression pedal is plugged in, and then the expression pedal would control the volume for the pedal. The jack needs to be isolated for this to work (see Related Products).

Specs

• Normally-closed switching jack
• Must be isolated from a metal enclosure for expression pedal use

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