When I need some high voltage wire, I look into my box of coax cable scraps. I
always find something suitable. Humble RG-59 is rated for 2300V rms, that's over
3.2kV DC. In many cases that's enough. And this is just its safe rating - the
actual breakdown voltage is far higher than that.
Since I'm a born and proud cheapskate, or in more modern terminology a good
recycler, I select some scrap of old RG-59 that looks very worn or dirty, take
it apart, discard the worn jacket, use the center conductor with its insulation
for the HV run, and I'm left with a bonus piece of braid, which can be used for
low impedance connections, or to suck up some solder.
Thicker varieties of coax cables of course are rated for higher voltages, enough
to satisfy those of you who run 4 or 5kV. And almost every ham who builds
equipment has ugly-looking scraps of that stuff lying around, which are fine
internally.
Manfred
========================
Visit my hobby homepage!
http://ludens.cl
========================
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|