[GreenKeys] Polar relays

[Steve Garrison]

Jack taught me that trick as well!

 

Steve G./N4TTY

 

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of til128 at juno.com
Sent: Tuesday, April 6, 2021 2:45 PM
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] Polar relays

 

Hi all:

 

If I could I would like to add my 2 cents to the fray of polar relays----a
LONG time ago, Jack Hart (SK) taught me to use a polar relay for driving the
TT loop from the RS232 port, and I thought I would share it.

 

I don't know if this is his or someone else's design.

 

It mentions a 314 relay but will work for all.

 

I still use it for MMTTY and HeavyMetal.

 

See Attached.

 

Tom WB2TTY



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