[Elecraft] K3: reverse 12 volt supply

[Guy Olinger K2AV]

That would work for stuff that doesn't move much. I should do that for a
lot of my soon to be rewired fixed operating position. But 7 wire stranded
THHN is still not rated for normal flexing or vibration. That's the zip
cord with fine stranded wire. I think that making the last six inches to a
rig connection fine stranded, appropriately heavy zip cord might be best of
both worlds.

73, Guy K2AV

On Tue, Sep 15, 2015 at 3:05 PM, Jim Brown <jim at audiosystemsgroup.com>
wrote:

> On Tue,9/15/2015 11:55 AM, Walter Underwood wrote:
>
>> Powerwerx has red/black zip cord from 24 gauge to 2 gauge.
>>
>
> Zip cord is NOT good for ANY application, because it is inherently
> susceptible to RFI. TWISTED PAIR is FAR better, because it inherently
> rejects interference from low audio frequencies to at least VHF. In the
> last few years, I've been replacing more of my DC wiring with twisted pair.
> I make it by putting black and white stranded THHN in a drill, the other
> end in a vise, and twisting.
>
> 73, Jim K9YC
>
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