[Elecraft] I love toroids
Jim W7RY
w7ry at centurytel.net
Sat Jun 11 13:00:00 EDT 2005
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" <rondec at easystreet.com>
>To: "'Elecraft Reflector'" <elecraft at 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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>
>
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