[GreenKeys] Polar relays

[til128 at juno.com]

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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