If Jack didn't put one there, it didn't need one. LOL

FWIW, I have been running one like that for about 10-12 years 24/7 with no problems.

TT

---------- Original Message ----------
From: Jeffrey Golas <[email protected]>
To: [email protected]
Cc: [email protected], [email protected]
Subject: Re: [GreenKeys] RS-232 to Polar Relay
Date: Mon, 16 Jan 2023 19:13:13 -0500

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

Jeff KC3GJX

On Jan 16, 2023, at 3:33 PM, [email protected] wrote:

Is the attached what you remember?

This was from Jack Hart (SK).

Tom Tillson

---------- Original Message ----------
From: Tom Hunter <[email protected]>
To: [email protected]
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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