Identifican request - 3 Valve mains superhet

[Sparks]

The screen grid of the output valve goes staright to the HT without any dropper or decoupling!    I haven't taken the voltages yet.    As I am currently running the set on 150V HT, that is a lot lower than it is meant to be.     I turned it up to 200 Volts just to see what hapenned.      My HT supply is fully variable via a variac, so turning it up and down is no problem.    The wire insulation is apalling, rotten and crumbly and that is why, at the moment, I am running on 150 Volts.    Here is a close up taken yesterday, and also the tray of parts currently removed, some have been replaced, others have not!    
Bob