Switched 2.1mm DC Power Jack - Yellow

$0.55
Yellow Switches Power Jack for DIY Guitar Effects Pedals

You know what this is. The pedal industry standard for the longest time. If you're using batteries this is for you. When a plug is inserted one of the terminals will switch off.

2.1mm Boss Style/Industry standard

Mounts in a 1/2 inch/11mm hole.

(You can buy a plastic nut for this jack, if you are into that.)

Weight:
0.16 Ounces