by Record-changer »
Mon Aug 17, 2009 6:30 pm
The big one is ground. One pin is slightly bigger than the other two, and is farther away. Use trial and error to find out the others.
The phonograph is usually wired with the same connector. Look at it, and copy it. These are standard line-level inputs and outputs.
If you can't get the connector, pins used for meter test leads work. Or you can wire some RCA jacks in parallel.
On some sets, you can also use that tape connector as a tape out socket in any selector position except tape. I used it, with a suitable A/B switch box on the other end, to connect a reel-to-reel recorder for recording and playback.