02-29-2020, 09:40 PM
Well to my American eyes the chassis looks like our model 60 or 66. Yes your french 265 is correct to have the regulator tube at the back. https://www.radiomuseum.org/r/philco_lyre_265.html Without the aid of the diagram my guess is that it in series with the mains to lower input voltage to the power transformer.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry