The Skymaster Colt was manufactured for Bond & Bond Ltd by Bell Radio-Television Corporation Ltd

Basically a Bell Colt with The Skymaster brand name on the Colt dial glass (Bell also made a Rolax version for Sedley Wells).

It appears that this was something Bell did in the early days of the Colt, possibly to increase sales or just to improve market spread of this model.  Currently there have been no models sighted beyond 1954, while Colts ran from 1951 through until about 1980

Valves (5): ECH81, EF89, EBC81, EL84, EZ80

Intermediate Frequency: 455kc/s

Chassis Notes (most schematics can be clicked to download a full size version): Appears to be a standard 5B60 or 5B61 chassis

All documented models using this chassis (2 in total)

1957Bell Planet
????Skymaster Colt - this set