This has me stumped, I’m presuming inter war as I can’t think of anything wartime with a wind driven generator. The AM crown is also unusual, The vendor suggested Vimy, but the mounting bracket doesn’t match photos. The front end is heavy cast alloy and it feels a tad beefy to be bolted onto a strut. My library is low on biplanes. Any ideas?
By: Flying_Pencil - 5th July 2018 at 15:09
Its not just a generator, but also a transformer!
Thomson Houston Co Ltd label states:
Generator (usually DC, but maybe was AC?)
1000V 100mA (100 Watt)
Transformer (Rotary)
Input: 11~12V 12A (132~144 Watt)
Output: 1000V 30mA (30 Watt)
AM label only says (and does not match)
1200V 120 Watt (100mA)
I assume the Transformer for was ship power to convert to V the W/T could use. Simple transformers use the AC wave as the working component, so I am guessing here it is using the rotating armature as the working component.
During war mechanical inverter was used, a regular DC motor driving an Alternator to create the desired AC power (usually 400Hz). Not sure if this was DC or AC.
By: powerandpassion - 28th June 2018 at 22:33
Ian, PM sent, Ed.
By: ian_ - 28th June 2018 at 17:57
I did wonder about the voltage myself. Must have been quire a technological leap forward to get Spits down to12v. The generator is spare, but weighs a lot!
By: Arabella-Cox - 28th June 2018 at 17:44
What equipment requires 1000 Volts?
Anything with electronic valves (tubes) – in those days all radio apparatus
By: Arabella-Cox - 28th June 2018 at 16:49
In the mid-20s, Section Ref. 10A covered “W/T and Aircraft Telephone Spares”.
By: Dev One - 28th June 2018 at 13:57
What equipment requires 1000 Volts?
By: Sabrejet - 28th June 2018 at 13:22
If it’s wind-driven, doesn’t that restrict its use if it’s not windy? Driven by airflow surely? 🙂
By: powerandpassion - 28th June 2018 at 12:27
Standard wind driven generator from 1920’s-40’s, fitted everything. Great piece though ! Happy to buy if for sale !
By: ian_ - 27th June 2018 at 19:36
Thanks AM, an excellent spot. 1932 suggests a Vickers Virginia, which I had to look up.
By: Arabella-Cox - 27th June 2018 at 19:10
Maybe not so far out after all?
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June 27, 2018 at 6:53 pm