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Date Posted by Category User IP

2017-07-26 (UTC)

NN7DJ

Rotators

67.108.46.225

Selsyn Synchro Motors (a pair)

Selsyn Synchro Motors (a pair)
Very good condition. 115 VAC.

Used for position indication. When one is turned, the other follows it's position.

Desireable 5 wire configuration.
Bench tested for correct operation.

Originally used as indicators for
prop pitch control in WW2 aircraft.

They are both Model C78248.
One is a Bendix Aviation Corp and the other is a Diehl Mfg Co.

Both have 1/4 in shafts, but one also has a collar with a 7/16in. coupling which is pinned.

They are about 3.5 in. diam and
5 in. long. Wt approx 4 lbs ea.

$40.00 shipped USPS to USA.
(I will pay flat rate postage)

Thanks, Dennis NN7DJ

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