Hi Peter, > Does anyone know of a chart that gives part numbers or anything > similar for barrel connectors.
https://en.wikipedia.org/wiki/Coaxial_power_connector#Standards is along those lines. > We have determined that it is 5.5mm O.D, and we have an unlabelled > drill bit that just fits the inside hole, but trying to find the right > one to order is stumping me. That list of standard sizes has two IEC Type A and one EIAJ with 5·5 mm O⌀. Internal diameters are 2.1, 2.5, and 3.4 mm. You might be able to eyeball 0.4 mm difference when placing the drill bit against a ruler. Or get drill bits of known close size, e.g. 2, 2.5, and 3 mm, and judge by finger and thumb tips. If you've done too much manual labour, find someone with soft hands and have them do repeated blind tests until they're consistent. I'd bet a little on Tim's resource being right and it's 2.5 mm. -- Cheers, Ralph. -- Next meeting: Online, Jitsi, Tuesday, 2024-01-02 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
