Manufactured by Bell Radio-Television Corporation Ltd in 1955, production ran for 2 years.
Third model of Colt. Some have 5B5 stamped on the chassis, some do not. This was the last model of Colt to have the code stamped on the chassis though. One sighted example just has B5 stamped on it.
Intermediate Frequency: 462kc/s
No schematic, but most likely very similar to the late-model 5B4 Colt