This is a basic four valve superhet radio but, with an eight-inch speaker in the large cabinet, it sounds wonderful. The mains transformer is massive and more than capable of supplying the current needed. One thing that is interesting is the EBL31 audio output valve which also contains a double diode for detection and AGC. Quite an ingenious idea, I reckon.
Sorry, due to lack of spares, this is a model I no longer repair.
Manufactured from 1947
Long Medium and Short Wave
Valves – ECH35 EF39 EBL31 AZ31
Pye 18A Service Manual HERE