[Elecraft] Toroid stripping/tinning

John R. Lonigro johnlon at sbcglobal.net
Wed Nov 11 06:52:58 EST 2009


This reminds me of a slick solution to the toroid stripping and tinning 
problem I saw on another reflector (I think).  Get an old soldering iron 
(I used a wood-burning iron) and drill a small blind hole in the tip to 
make a mini solder pot.  When you are ready to strip the toroid leads, 
get the iron hot, melt some solder into the hole until it is full, then 
dip the leads into the hole, one at a time.  After a few seconds of 
bubbling, the lead comes out professionally stripped and tinned.  I wish 
I knew this trick when I was building my K2 many years ago.  That was 
the only part about winding toroids I didn't like and felt unsure about.

73's,

John AA0VE

Don Wilhelm wrote:
Check that toroid carefully for poorly tinned and soldered leads. If you 
can see any enamel on the solder side of the board, that is a sure sign 
that the lead was not wellstripped and tinned. Removal and re-tinning is 
the only cure.


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