Post AywmWfxrVlieOBbxMu by mathaetaes@infosec.exchange
 (DIR) More posts by mathaetaes@infosec.exchange
 (DIR) Post #AywmWfxrVlieOBbxMu by mathaetaes@infosec.exchange
       2025-10-06T22:35:20Z
       
       0 likes, 0 repeats
       
       Any chance anyone has got experience dealing with 4-pin CB push-to-talk handsets?  I got my hands on a really cheap one (looks like it might be this https://www.amazon.com/dp/B0BVKJDS8V), and want to adapt the 4-pin to something my kid can use to play train conductor (honestly, just finding the male end would be useful - kid would be stoked to just plug it into the little train I made him from old diaper boxes), or maybe re-wire it for XLR and make a really crappy sounding microphone for situations that warrant really crappy sounding microphones... then I could run it through FX racks and into a PA - kid would love that.  Push-to-talk makes an added bonus.If you do, do you recognize that connector and know where I can find adapters for it?  I assume it's got audio in and out, plus a common ground.  Not sure what the fourth wire would be - the switch maybe?  I was hoping to switch it to 2 mono 3.5mm TS connectors to make it easier to plug the in and out into things that accept them individually.Any resources you can point me to would be appreciated... and if you don't, that's fine too.Specifically tagging @ai6yr because I know you do this kind of stuff.#hamradio #electronics #radioshack
       
 (DIR) Post #AywmWh01fD2nbBdCNc by ai6yr@m.ai6yr.org
       2025-10-06T22:45:07Z
       
       1 likes, 0 repeats
       
       @mathaetaes It's probably one of these, but the best way to check is to open up the top and probe it.  Depends if it's MIC only or combo mic/speaker... I guess the second one because it has a speaker built in.
       
 (DIR) Post #AywnBpIdhz6BDLx4QC by weezmgk@mastodon.social
       2025-10-06T22:58:28Z
       
       0 likes, 0 repeats
       
       @mathaetaes There's no particular rhyme or reason to 4 pin mic connector pinouts. However, you can bet on the PTT line being a pull to gnd and the mic audio being constantly connected because running mic audio through a switch is a good way to cause problems with durability. It's not a lot of trouble to open the mic body and take off the connector backshell to trace them out. @ai6yr
       
 (DIR) Post #AywnBqK5u3rAO9dkKO by Nimbius666@comp.lain.la
       2025-10-06T23:13:05.618553Z
       
       0 likes, 0 repeats
       
       @weezmgk @mathaetaes @ai6yr cat6 Ethernet cable: "defined standards that shan't be deviated!"4 pin: