The Model 1 was the first portable under the Bell brand, and replaced the Antone portable set.
Valves (5 + selenium rectifier): DF91, DK40, DF91, DAF91, DL92
Intermediate Frequency: 462kc/s
Frequency Bands: 1
Chassis Notes(most schematics can be clicked to download a full size version) Uses a selenium rectifier which may need bypassed with a modern diode (and possibly a resistor to reduce the H.T. voltage) in sets today.