[Milsurplus] I-81-A Radio Compass Indicator

[J. Forster]

Close.

The unit is 115 VAC 400 Hz in.

The 48 VAC runs the loop servo motor.
The 28 VAC runs the remote indicators.

-John

================

> All:
>
> The 115V 400Hz was fed to the primary of the power transformer. The I-81
> and I-82 were driven by a secondary winding that, if I remember correctly,
> was approximately 46 volts.
>
> I have a couple of I-81as and I-82As that are very sluggish at 26 v 400Hz.
> At 35+ volts, they respond quite quickly and correctly.
>
> Sincerely,
>
> Dave Jackson
>
> (408) 345-8304
> (from Blackberry)
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