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THE AM BULLETIN BOARD => QSO => Topic started by: N3DRB The Derb on January 07, 2008, 05:10:44 PM



Title: Switch me to the max!
Post by: N3DRB The Derb on January 07, 2008, 05:10:44 PM
Wow, got a care package from the MOP man today. This the biggest feedline switch I've ever seen. Now I gotta figure out what teh best usage of it would be. I could use it as a shunt feedlines to ground safety,  or I could use it to switch 2 antennas to one tuna or the same antenna to 2 different tunas.

if you had this, would would you use it for?

Tnx Phred!  8)




Title: Re: Switch me to the max!
Post by: W4RON on January 07, 2008, 05:30:03 PM
Quote from: N3DRB The Derb
if you had this, would would you use it for?

Tnx Phred!  Cool
[/quote

WOW want a nice switch, that's just what I need to
switch my G5RV into a Marconi for 160.
Maybe there's another one out there somewhere.

73, Ron W4RON


Title: Re: Switch me to the max!
Post by: ka3zlr on January 07, 2008, 05:37:23 PM
Derb,

Dat is buzzardly.....LOL.Kewel...


Title: Re: Switch me to the max!
Post by: KA8WTK on January 07, 2008, 05:47:54 PM
Hey Derb,
  If that is a SA-13/U, I think it was used in B-29 aircraft to switch the antenna. It is a beast!


Title: Re: Switch me to the max!
Post by: N3DRB The Derb on January 07, 2008, 06:17:51 PM
It's bad brotha!  So much bone!




Title: Re: Switch me to the max!
Post by: WZ1M on January 07, 2008, 06:30:28 PM
I have one just like this hanging on the wall, doing nothing. Now ya got me to thinking what I can use it for.
Gary


Title: Re: Switch me to the max!
Post by: Ed/KB1HYS on January 07, 2008, 06:33:51 PM
Last time I saw a switch like that, someone was jumping up and down yelling

It's Alive!! IT'S ALIVE!!! 


Title: Re: Switch me to the max!
Post by: ka3zlr on January 07, 2008, 06:36:41 PM
LOLOL...............


Title: Re: Switch me to the max!
Post by: WA3VJB on January 07, 2008, 08:38:02 PM
That'd be a damn shame to burn that bone with a static discharge to ground.

I'd use it to switch phase on your open wire feedline. "X" pattern. Sometimes a favorable lobe shows up one t'other.

Come storm season, ground that sucka outside and come back later.


Title: Re: Switch me to the max!
Post by: N3DRB The Derb on January 07, 2008, 10:00:27 PM
good idea. I'm gonna do just that.

Now got 6 8ft rods in the dirt tied together with whatever 3 strands of #6 is, silver soldered at any point where a mechanical connection takes place. I been busy propane torchin.  :D


Title: Re: Switch me to the max!
Post by: KA8WTK on January 07, 2008, 10:06:56 PM
http://aafradio.org/flightdeck/b29.htm

Derb,
  Look just above the operators head in this picture.


Title: Re: Switch me to the max!
Post by: k4kyv on January 08, 2008, 02:37:01 AM
I have used one of those switches for decades.  Also have a couple that are SPDT but otherwise identical, that I picked up somewhere.


Title: Re: Switch me to the max!
Post by: N5RLR on January 08, 2008, 05:08:28 AM
"Throw the Third Switch!"

"Not...the THIRD Switch...!"


"YES!  THROW IT, I SAY!!"

-- with apologies to Mel Brooks, Gene Wilder, and Marty Feldman.

 ;D


Title: Re: Switch me to the max!
Post by: N3DRB The Derb on January 08, 2008, 02:22:36 PM
Yep. That's the puppy. Now I gotta figure how best to mount it up. Lotsa final outside construction going on right now. It's 68 degrees today. Gotta take advantage of that before we are back to 22 degrees.


Title: Re: Switch me to the max!
Post by: flintstone mop on January 08, 2008, 06:21:46 PM
That Thar switch was a nice one from Surplus Sales.
WHEN you can afford their stuff, it's worth it. Usually clean used or mostly NOS. They must have gotten a nice deal on the goodies from (was it??) Los Alamos??? A research lab, possibly from area 51 fame.

Fred


Title: Re: Switch me to the max!
Post by: Ed - N3LHB on January 08, 2008, 10:07:39 PM
Wow, got a care package from the MOP man today. This the biggest feedline switch I've ever seen. Now I gotta figure out what teh best usage of it would be. I could use it as a shunt feedlines to ground safety,  or I could use it to switch 2 antennas to one tuna or the same antenna to 2 different tunas.

if you had this, would would you use it for?

Tnx Phred!  8)

Derb, you know that I would label the switch "The Works" and use for it transport my best creation upward and dare lightening to strike it... Hope your ground system is ho ho fb om...



Title: Re: Switch me to the max!
Post by: N3DRB The Derb on January 09, 2008, 08:57:57 PM
It's a ground system worthy of the best 1920's spark outfit, Ed. Which is good, because the ac mains grounds is quite iffy. There some funny business going on in the Square D box too.




Title: Re: Switch me to the max!
Post by: W5AMI on January 09, 2008, 09:30:17 PM
That is one "Stud" knife switch Derb. 

You could fire up the Frankenstein monster with that buzzardly hunk.
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