Here is an example of a head phone jacket 1/4 inch ( 6.3 or 6.35 mm ) in a 10mm modushop slim line front panel. I didn't want a jacket with a big ugly nut on the front side. So the question (for this first time preamp builder) was how to attach such a jacket on the back side of the front panel? Although my solution is quite straight forward, I did not found clear photo examples on such a construction on the internet. So lets have a look, see photo's. I used the Cliff CL 12345 jacket with gold-plated contacts. The standoffs are 20 mm. More photo's of the jacket, the cavety needed and its further construction, and my build log of my preamp, can be found here:
AMB Laboratories DIY Audio Forums • View topic - α24 with M3 preamp built log&Q's
AMB Laboratories DIY Audio Forums • View topic - α24 with M3 preamp built log&Q's