Subj : MORSE CODE
To : David Pratt
From : Richard Brumbaugh
Date : Fri Sep 15 2000 04:06 pm
On (15 Sep 00) David Pratt wrote to Richard Brumbaugh...
DP> Ah, yes, I too have a chrome Vibroplex, bought band new about 40 years
DP> ago for about 10 UK pounds and still looking as good as new in its
DP> black carrying case. It must be worth a small fortune these days.
I haven't had mine for many years. Back in the '40's dad bought he
and I both a brand new bug, black krinkle finish. I think they may
have been military surplus, but I'm not sure. Wish I had it too, and
a lot of other stuff made in the 20's and 30's that I gave away.
DP> I am still trying to get used to a conventional el-bug having just
DP> finished making the Elecraft K2 transceiver which has one built in.
DP> It does have Iambic modes A and B also, but first things first. By
DP> the way, what is the difference between Type A and Type B?
The Elecraft K2 looks like a good kit. There has been a good write up
on it, I believe in a recent QST, but again, not sure.
Type A: If you are sending a character that you have both paddles
squeezed closed, the last dit or dah being sent will complete.
Type B: If you are sending a character that you have both paddles
squeezed closed, it will not only complete the dit or dah that is
being sent, but will send another one of the opposite.
If you are used to sending a "K" by holding the dash paddle in and
"thumbing" in the dot, type A will complete the "K".
If you send a "K" as above using type B it will send a dit, and
actually send a "C". It's kinda hard to get used to. My home brew
keyer using the Curtis chip I built in the 80's uses type A.
My Ten-Tec Scout has built-in type B "only", so I either had to use my
separate keyer or get used to type B. I decided to practice and get
type B down pat. It takes a few hours practice.
With type A you could send the letter "A" by holding in the dit paddle
and thumb-in the dash, letting both paddles make contact. Can't do
that with type B. It will send another dit, and send an "R" instead.
That ought to be enough for you to see the difference, hi.
Of course, if you use a "single" paddle, it is moot, cuz you can't
send the dits and dahs at the same time.
Best regards, (73)
Dick, W5MFD since 1946
[email protected]
--- PPoint 3.01
* Origin: A School-Free Gun Zone * Tulsa OK * USA (1:170/302.17)
