[GreenKeys] polar loops

[Bob Camp]

Hi

I think the link should be

http://www.cedarknolltelephone.com/cedartel/repeater.htm

	Enjoy!

		Bob Camp
		KB8TQ


On Jun 17, 2004, at 9:20 AM, Paul Wills wrote:

> A picture of the "store bought" version can be found here:
>
> http://www.cedarknolltelephone/cedartel/repeater.htm
>
> Paul Wills
>
> kf9nz at juno.com wrote:
> > I just remembered something about adjusting polar relays!
>> Somebody on the RR built a gadget to adjust theses relays.  It had a
>> square wave generator of some kind that pulsed the relay, and a zero
>> center milliammeter on the contacts.  The idea was to adjust the 
>> magnetic
>> bias and contact spacing on the relay to keep the needle on center.  
>> It
>> was a "home built" device, but  I think it was based on  a commercial
>> unit.
>> Frankf9nz
>
>
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