[GreenKeys] Polar Relay Test

[John W9DDD]

I was curious too.  Looks like some sort of circuitry to the left of the relay he attaches the clips lead to.

Here's a good reference document for adjusting.  Seems to cover every kind of WE and WU relay.
https://navy-radio.com/manuals/tty/259B-5912.pdf

John, W9DDD


> On Jun 3, 2023, at 10:55 AM, W2HX <w2hx at w2hx.com> wrote:
> 
> Very nice! Do you drive it with some kind of square wave? If so, do you just eyeball it on a scope to see that the square wave is 50% duty cycle? 
> 
> 
> 73 Eugene W2HX
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> 
> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of B. Smith
> Sent: Friday, June 2, 2023 10:36 PM
> To: greenkeys at mailman.qth.net
> Subject: [GreenKeys] Polar Relay Test
> 
> I've up loaded a short video for all you Polar Relay fans.
> k4che
> http://k4che.com/Tempvideo/Polar%20Relay%20Test/Pole%20K4CHE.mp4
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