[Joeztech]

Ron;

You are correct. I took the jack and the switch loose and could see the slightly raised edge of the chassis metal around the openings they were fit through. They were obviously drilled later on. While this may have been a nice feature to the customer, they are not original. Factory made punched holes have no raised ridge around the openings and no rough edges like these.

One issue with adding a phonograph input to an existing radio is that the circuitry is not equalized to RIAA specifications, so the audio response curve will not be accurate. Many people would not notice the errors in the sound though.

I have no intentions of using a phonograph with this radio, so I may remove the circuitry and put it back like it was originally. I can find some snap-in chassis hole plugs to cover the openings.