RCA TR29 Radio, tv table model

[Bill Cahill]

This set had been through the mill. Yet, when I finally got a raster on the tube, I also found radio was working on both AM-FM radio, I had also rebuilt.
But, thirty minutes later, the AM died. Fifteen minutes later the FM also died. Tubes, and, dial lights stayed lit. It will not re-start playing. Put other tested, known working tubes remained with radio dead. Tried spraying tube sockets with di-ox-it on all radio plugs going to tv chassis with no help. Can anyone help ?
Bill Cahill