[Milsurplus] unid 80VACvoltage regulator

[Andy Young]

This sounds like a carbon-pile regulator. Some pictures would help. Does it
say 'Voltage Regulator Type xx' anywhere?

Andy
M0FYA

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
<milsurplus-bounces at mailman.qth.net> On Behalf Of Ralph
Sent: 18 June 2019 14:37
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] unid 80VACvoltage regulator

I found a coule of small items , similar to dynamotors about 4" long by 3"
in diameter. Marked A Crown M, persumably U.K. Air Ministry. The
nomenclature states "Ref. No. 5U/1304 Regulator Voltage 80Volts AC" 
"Patent no. 514482 532741"

Can anyone identify what this unit controlled ? One end bell reveals a
toroidal transformer with 4 leads and the other end a curious combination of
clutch like assembly. Not sure what principle of regulation it uses ,
perhaps saturable reactor. Its a mystery to me. Can supply a photo to the
curious. Obviously a piece of airborne equipment.

Thanks

Ralph, VE3BBM

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