Philco Predicta Tandem--need parts for on/off switch

[berta12]

I'm having someone repair my mahogany Philco Predicta Tandem for me, and the TV has a switch override in the back that my friend is taking off and making safer by adding a cord with a thumbwheel to turn the TV on and off. Apparently, sometime during the decades, the resistors by the front dial However, it would be nice to have it turn on from the front dial as it’s supposed to.

In order to do this, he says he needs the following parts, which I wonder if anyone has for sale or knows where to get. Actually, he says these two parts need to be together: the rear being a 2.5 megaohm variable resistor with a power switch and a small size split shaft (he says there’s two sizes of shafts,) and the front being a contrast control with a 2 mega ohm variable resistor.

I’d appreciate any information, and if anyone is interested in this great TV once it's working, let me know and I'll keep you posted. Thanks!