Howard, My (somewhat limited) experience with microphones is that the white shielded wire goes to the element, the shield goes to the other terminal on the element, the red wire is PTT, and the black wire is PTT ground return. So typically both the black wire and the shield go to the sleeve of the plug. I don’t know what the other connections are for the TR-4.
73, Bob AD3K On Jun 26, 2014, at 4:50 PM, choward...@aol.com wrote: > I have used a Shure 404C microphone on my TR-4 for many years. Recently it > quit on me. I discovered that the wires had finally broken at the plug end. > So, my problem is that I am not sure which wire from the mike goes to which > connection at the plug. There is a red wire, a white wire (which appears to > be shielded), and a black wire coming from the mike. > The 1/4" plug has 3 screw connections. The first appears to connect to the > body of the plug which has the threaded portion. The 2nd and 3rd go to the > interior of the plug. > Any ideas? > Thanks again. I am hoping that you guys will do just 1/2 as good a job as > you did with my audio hum a few weeks back. > Howard - N0KOE > _______________________________________________ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist
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