Re: Help!(with wire size) Please!!
From: Edward V. Phillips[SMTP:ed-at-alumni.caltech.edu]
Sent: Thursday, September 04, 1997 12:39 PM
Subject: Re: Help!(with wire size) Please!!
"This discussion brings up the interesting question of skin effect.....has
anybody experimented with winding a secondary using Litz wire?"
I have. Wound a 5-1/4" by 18" coil with litz wire which had
the same outside diameter as #24 (would have to find the spool to
remember what the actual litz designation was, but think it had about
50 strands). Performance was definitely poorer than smaller coils
I have wound with solid wire. Not sure what conclusion you can reach
from that, but for TC work I wouldn't go to the expense of litz.
In my opinion the UNLOADED Q doesn't matter very much , just the
coupled power during discharge. I'm sure there are those who
For VLF antenna loading coils litz gives about 50% more
Q than solid wire, in my experience which is limited to a couple
of coils. However, in actual use the unloaded Q is unimportant,
but for a different reason. The resistance of a typical ground
circuit is much larger than the effective resistance of the loading