I, also, am very right handed. I wound the toroids without much thought
about the 'right way'. My K2 #4901 is running perfectly and checked out at
each alignment stage. Maybe I wound them 'correctly', but I don't really
think whether the lead comes over the top of the core or from under it makes
much difference. The difference would occur if you had more or less turns
going through the core. I've tried reading the inductance of a toroid with
a wire just sitting on top or under the core and as you may have guessed,
the inductance is lower than I can measure with a darn good DMM.
My 2 cents.
73
Jim, K4ZMV
----- Original Message -----
From: "Jim W7RY" <[EMAIL PROTECTED]>
To: <elecraft@mailman.qth.net>
Sent: Saturday, June 11, 2005 1:00 PM
Subject: Re: [Elecraft] I love toroids
I disagree with the left hand right hand issue. I'm very right handed and
wound the toroids of my 1st K2 back words. However, when winding the set
for my current K2, I had to make a concise effort to wind them correctly
and it was awkward to do so.
BTW, I travel frequently for work so I brought all of the toroids and wire
on my recent trip. I sat at the desk in the hotel room and wound them all.
I did not strip and tin the leads... To much smoke. I was afraid of
setting off the smoke detectors.
Hey Elecraft! Why not put a separate section into the manual that
describes what core, what L or T number and the number of turns on each
core. That way, one can "pre-wind" all of the toroidal coils at the same
time and not have to stop and wind?
Just my 2cents worth.
73
Jim W7RY
K2 4914. (Heading down the finish line)
PS my K2 is now operational as a receiver on 40 meters. Works great!
At 09:44 AM 6/11/2005, Robert Friess wrote:
Maybe we who use the correct hand, i.e. the left one, should unite and
demand left-handed pc layouts and manuals as a no-cost option.
73,
Bob, N6CM
----- Original Message ----- From: "Ron D'Eau Claire"
<[EMAIL PROTECTED]>
To: "'Elecraft Reflector'" <elecraft@mailman.qth.net>
Sent: Saturday, June 11, 2005 9:40 AM
Subject: RE: [Elecraft] I love toroids
Fred, K6DGW, wrote:
If my memory serves me, there really is no such thing as a 1/2 turn ...
each pass thru the donut is a turn. But then, my memory serves me less
and less these days.
-------------------
That's correct. There are no partial turns on a toroid.
As a leftie I had to overcome the same "sense" issue. Then came the T1!
One
toroid in the T1 has only three turns, close spaced, so they end up using
only a small part of the core. The turns occupy the area of the core
normally left open on a toroid. As a result, the "sense" of the winding
is
reversed! You have to wind that one "backwards" to make the leads lie up
with the pads on the board.
Oh, well, as Emerson wrote, "A foolish consistency is the hobgoblin of
little minds, adored by little statesmen and philosophers and divines.
With
consistency a great soul has simply nothing to do. He may as well concern
himself with his shadow on the wall." ... Or, I might add, concern
himself
with why the toroid leads don't match the holes in the PCB.
Ron AC7AC
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