"That would cause reduced horizontal and vertical deflection and probably the lack of intensity control." Could you explain why please Tom?
I've tested the regulator circuit which is working ok. However I have too high a voltage at the cathode IE -2200v instead of -1850v but too low a voltage on the intensity part of the circuit IE -1606v instead of -1950v which doesn't make sense as both have the same diode replacements - two R5000F's.
Will do some digging, Andy.
Diabolical Artificer