13-02-2017, 09:57 AM
Crackle - Thanks for offer, but I have another Westector, but didn't realise it was one 
Your third image along shows one exactly the same as I have in my diodes box!
There may well still be a fault on it, but I have changed ALL the capacitors except the aerial series capacitor (and that would not effect anything as it checks OK and is only 100pF).
PW Drive - As it stands at the moment, increasing the HT to 220V reduces the volume and makes it unstablel. I am amazed at the performance with 50 Volts HT, and it is safer as well. On a MW set, the lack of AGC will not affect anything very much, but I will investigate the phenomena when I get further along with the repair. There may be some resistors gone off spec, but they are extremely hard to identify as their colours are all faded, and difficult to disconnect from the double tag strip!
Bob
Your third image along shows one exactly the same as I have in my diodes box! There may well still be a fault on it, but I have changed ALL the capacitors except the aerial series capacitor (and that would not effect anything as it checks OK and is only 100pF).
PW Drive - As it stands at the moment, increasing the HT to 220V reduces the volume and makes it unstablel. I am amazed at the performance with 50 Volts HT, and it is safer as well. On a MW set, the lack of AGC will not affect anything very much, but I will investigate the phenomena when I get further along with the repair. There may be some resistors gone off spec, but they are extremely hard to identify as their colours are all faded, and difficult to disconnect from the double tag strip!
Bob
