[R-390] Mechanical Filter Repair

[ToddRoberts2001 at aol.com]

In a message dated 6/13/2007 7:59:37 PM Eastern Standard Time, 
mdmerz at verizon.net writes:
I believe "formvar" will be hard to 
remove for soldering and abrasion is the most easily done method for the 
formvar wire I've used.   There's probably a solvent that will work but I 
never found one that acted very quickly.
 
 
I have had very good luck using Strip-EZE paint remover. I put some into a 
small bottle cap to a depth of about 1/4 inch and dip the end of the wire into 
it for 5-10 minutes, then wipe the end of the wire with a kleenex. The enamel 
coating comes right off and the copper is bright and shiny ready for soldering. 
I use the same method to remove the enamel from small-gauge Litz wire also. 
It is the best method I have found for safely removing the enamel without 
hurting the fine wire.
 
73 Todd WD4NGG



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