[GreenKeys] RS-232 to Polar Relay

[Jeffrey Golas]

Shoudnt there be a snubber diode in line with the relay- serial port?

Jeff KC3GJX

> On Jan 16, 2023, at 3:33 PM, til128 at juno.com wrote:
> 
> 
> Is the attached what you remember?
>  
> This was from Jack Hart (SK).
>  
> Tom Tillson
> 
> ---------- Original Message ----------
> From: Tom Hunter <tomhenryhunter at gmail.com>
> To: GreenKeys at mailman.qth.net
> Subject: [GreenKeys] RS-232 to Polar Relay
> Date: Mon, 16 Jan 2023 13:37:41 -0500
> 
> John,
>  
> A while back someone (and I cannot remember whom, because he deserves the credit.) Mentioned that a polar relay can be driven directly by an RS-232 output. Think about it, it is really a polar signal.
>  
> I am kicking myself because I never thought of something so obvious.
>  
>  
> Tom N3CRK
> <Polar-NeutralConvertor.jpg>
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