Well, I've messed something up or fixed and found another issue in the process.
Soldered everything back together and when I switch it on now, I get static ok for a second or two with what appears to be correct volume and then throbbing/pulsing sound from speaker
Sounds like capacitor charging/discharging but bit lost now what this might be.
I've checked all wires going into condenser block and all are connected correctly.
I've quadruple checked condenser block and all seems fine and connected correctly.
If I turn the tone control between the settings(I assume its off then), radio seem to work fine, just quiet.
Oh and I think I found reason why R52 was open circuit, with neither of AC4/PEN valves in the set, it gets very hot, rather quickly, although I think that's unrelated.