Double Bass Jack Holder for Switchcraft 1/4" Female Phone Plug

[Ric Vice]

Hello everyone,
What is the size of the plastic pipe clamp that will snugly hold a Switchcraft 1/4 Female extension jack for a piezo pickup. Their is a hole in the clamp that threads through the G String on the on the backside of the tailpiece.

Ric

 

[ctxbass]

I believe you need a 1/2 inch nylon cable clamp.

This is what I pieced together at the hardware store. It makes it easy to remove a wing mounted pickup from the bass when I don't use an amp.