I'm colorblind. If you're talking about the doobers at the end of each
tie over the foot of the rail, they're hold downs for the rails on
concrete ties. They take the place of spikes in wood ties whose purpose
is to maintain proper separation ["gauge"] between the rails. The rails
stand up by themselves.
On 6/5/2020 4:14 PM, Dave Cole wrote:
Anyone know what those green wires are on each RR cross tie?
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 6/5/20 12:28 PM, Edward T. Tanton wrote:
WOW!!! That was so-o-o neat!!!
-----Original Message-----
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
donov...@starpower.net
Sent: Friday, June 05, 2020 2:14 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Self-fusing liquid electrical tape
Hey Jim,
If you think Cad-Welding a ground rod is fun to watch, take a look at
thermite welding of railroad tracks:
www.youtube.com/watch?v=5uxsFglz2ig
73
Frank
W3LPL
----- Original Message -----
From: "Jim Brown" <j...@audiosystemsgroup.com>
To: elecraft@mailman.qth.net
Sent: Friday, June 5, 2020 6:07:22 PM
Subject: Re: [Elecraft] Self-fusing liquid electrical tape
On 6/5/2020 10:23 AM, Chris Waldrup wrote:
This is probably overkill for QRP but I wanted to do it right like
we used
to do in broadcast.
The primary purpose of grounding bonding has NOTHING to do with radio --
it's for LIGHTNNG PROTECTION!
On 6/5/2020 10:46 AM, Walter Underwood wrote:
Cad-weld seems a easier than the other approach described. It is more
robust against corrosion, plus it is fun.
Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to
watch. :)
73, Jim K9YC
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