ID:
2554
Maker's Name:
Airzone (1931) Ltd, Sydney
Where made:
Australia
1942
Dimensions:
19 × 11 × 10.2 cm
Essentially a DC motor and generator sharing a common shaft and static magnetic field.
Input 11V, 3.2 A
Output 354 V, 0.04 A
The conversion efficiency was about 40 %.
Probably used to provide a high voltage supply fot the anodes of valves in battery powered transmitters.