To: | <towertalk@contesting.com> |
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Subject: | Re: [TowerTalk] There's 'ground', and then there's 'ground' |
From: | "Roger Halstead" <aviation@rogerhalstead.com> |
Date: | Sun, 16 Jan 2005 22:43:36 -0500 |
List-post: | <mailto:towertalk@contesting.com> |
<snip> I've replaced quite a few coax cables from the tank coil to the relay on a number of well known amps.In HF power amplifiers, I have found a good general rule of thumb is this: At 30 MHz is the clean braid from RG-8 cable has about the same current carrying capacity as #14 or 16 tinned solid buss wire. The braid would get hot, the dielectric melt right where it went into the shield, and then short. It was easy to fix and I never saw it damage anything else, except for a few DXers dispostions. <G>
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