[GreenKeys] McElroy keyer - Wheatstone tape?

[Nick England]

Me again - well, thanks to comments from Jim and Jack I got all set to
hook up a 255-A polar relay and try it as a dit-dah latch. But after
looking through various boxes and and parts units, I have to conclude
I ain't got no polar relay.
Say mister, can you spare a relay?
Can trade some greenbacks, CP Clare mercury-wetted relays, or what-have-you.....
cheers,
Nick K4NYW

On Sun, Feb 26, 2012 at 12:38 PM, Nick England <navy.radio at gmail.com> wrote:
> But no, it appears this device has separate start and stop contacts,
> and depends on some external device to actually turn those signals
> into each dot and dash to key the transmitter.
> i.e. for a dit, the start contact closes briefly , then a little later
> the stop contact closes briefly
> - for a dah, there is a longer pause between the start and stop closures.