[Boatanchors] I-82-A as antenna position indicator

[Mark Foltarz]

Well  John WA4WDL got me a schematic. Answers everything except voltage and freq.  I'm betting it is 28 V @ 400hz.  

The actual drive selsyn is a Bendix AY-1. Turns out Fair in Lima, Oh has them.  

Found a box of selsyns, some 60 hz, a couple 400hz.  

It would be great to put that I-82 into meaningful service.

I understand that 400 hz selsyns can be made to operate on 60hz.  I'm sure at very reduced ratings.

de KA4JVY

Mark





 

>
>From: "WA5CAB at cs.com" <WA5CAB at cs.com>
>To: Foltarz at rocketmail.com; boatanchors at mailman.qth.net
>Sent: Tue, October 13, 2009 6:27:46 PM
>Subject: Re: [Boatanchors] I-82-A as antenna position indicator
>
>Mark,
>
>I've never tried to use one for that but the I-82-A (and smaller I-81-A) schematic and point to point DC resistance readings are shown in the SCR-269 manuals.  T.O. 08-10-175 (on SCR-269-G) shows Pin 1 Ground, Pins 2, 3 and 5 to the three stator terminals and Pins 2 and 4 to the rotor (armature) terminals.  
>
>1 - Case (Ground)
>2 - Phase 2 and Rotor
>3 - Phase 1
>4 - Rotor
>5 - Phase 3
>
>Resistance Readings:
>
>1 to case - 0 ohms
>2, 3, 4 or 5 to 1 - Open (Infinite)
>2 to 3 - 16 ohms
>2 to 5 - 16 ohms
>2 to 4 - 55 ohms
>
>The connector is PL-118.
>
>In a message dated 10/13/2009 3:55:48 PM Central Daylight Time, Foltarz at rocketmail.com writes: 
>
>Group, 
>>
>>Has anyone had sucess using the I-82-A indicator as for antenna positioning ?
>>
>>Can't seem to find info on the pinout anywhere.
>>
>>de KA4JVY
>>
>>Mark
>>
>
>Robert Downs - Houston
>wa5cab dot com (Web Store)
>MVPA 9480