[GreenKeys] McElroy keyer - Wheatstone tape?

Nick England navy.radio at gmail.com
Sun Feb 26 17:22:49 EST 2012


A few minutes ago I robbed a polar relay out of a Navy TU and
alligator clipped it up -
it works!    -. . .-. -.-    -. . .-. -.-    way cool!!!

OK - I guess this is like blogging - but you guys all know where the
DEL key is located....
I'm having great fun - and all thanks to info and suggestions from
greenkeyers.... and to John K4OZY who says he's got some spare polar
relays - time for a visit.

OK, the perf works and the keyer works and next up is an inker. I
wanna see what it's like to send 150wpm Morse code at least from one
side of the room to the other.....

Now if I can only find a Navy Morse-to-Baudot and a Baudot-to-Morse converter...
http://www.navy-radio.com/morse.htm

cheers and many thanks for the help and encouragement,
Nick K4NYW


On Sun, Feb 26, 2012 at 4:26 PM, Nick England <navy.radio at gmail.com> wrote:
> 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.


More information about the GreenKeys mailing list