[Lowfer] WA loop status report

Bill Ashlock [email protected]
Sun, 15 Sep 2002 01:43:44 -0400


All,

WA is back up to 1W after replacing the Litz cable with the RG-8 cable.

Didn't get the opportunity today to find out what the problem was but will 
do this tomorrow. The DC resistance on all 4 individual cables measured much 
higher than it should have been. No abrasion was found.

Made an interesting discovery in the requirements for the stepdown 
transformer design. I ran across a tiny .5" OD core made from #77 ferrite 
and tried it in my bench final and loop simulator. Used the same number of 
turns as with my larger #77 cores and found there was no loss in efficiency 
when comparing input power to output power into the loop (>95%). This makes 
it possible to construct a final including stepdown transformer about the 
size of a large postage stamp.

Bill

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