On 1/27/21 4:58 PM, n2msqrp wrote:
Because of the temperatures involved in the fabrication process solder would melt on plated stranded wire so teflon wire is either available silver plated or bare copper wire.
It used to be available for a decent price at ham fests years ago. I don't knoe know since the proce of all surplus wire has risen.
Mike N2MS
$650/for 100ft from Digikey - Alpha 5859/12 WH005 MIL-W-16878/4 Type E
$434/100ft for AT121925 WH005 (19/25 strand copper silver coated)
you could probably find a less expensive insulation that works as well, but "dollars/ft" is what you're looking at.
I'll bet a lot of the cost is NOT the copper cost..
So running a 4 wire twist (2 in parallel) might actually be cheaper. That would be AWG 15
AWG16 is about 129/100ft and TFE (not PTFE) insulation, still 600V, still good to 200C.
and you can buy these things by the foot (even from Digikey).
On 01/27/2021 4:09 PM David Eckhardt <davearea51a@...> wrote:
I was also surprised it broke down, but every CMC I wound with solid #12
enameled wire broke down between 400 and 700 watts. I believe it has a lot
I have not tried or thought of using teflon coated silvered conductor. I
need to find it and, if not too expensive, give it a try.
