Help with Phono - RCA Victor 18t AM Radio

[dieseljeep]

Originally Posted by Electronic M

I had an older RCA tube set that IIRC used the longer center pin RCA connecter to disconnect the radio section...

That's what I was referring to, when I mentioned that there might be a change in production.
I had an RCA that had a closed circuit phono jack, that when a phono plug was inserted, the radio was silenced and the input was live.
The radio, being referred to, was a great performing set.
Eight tube, transformer powered, with push-pull output and a tuned RF stage.
What more could you ask for?