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Author Topic: anyone ever seen one of these B4?  (Read 4795 times)
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N3DRB The Derb
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« on: July 25, 2009, 12:40:37 PM »

Bud Radio, appears to be a center insulator for a dipole with open wire line. I gave the man a dollar for it at the last fester. short side is about 4/12 inches, long side double that +some. Wondering if I should use it for the next antenna.... which will be installed with a pulley system this time. Roll Eyes

Start on that when I get back from Don's.



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xe1yzy
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« Reply #1 on: July 25, 2009, 03:52:25 PM »

Nice catch, I could be use one of those in a fan dipole, right?

RGDS
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W1UJR
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« Reply #2 on: July 25, 2009, 04:58:43 PM »

Very cool find Derb!

Here you go, fresh from the 1935 Bud catalog!


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W2PFY
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« Reply #3 on: July 25, 2009, 06:12:49 PM »

That would cost $14.00 in today's money and if it were made today, it would probably cost more than $14.00 US dollars. In dog dollars today, it would be about $98.00 dog dollars.  If you figured it from 1935, it would be in the billions of dog dollars. I suppose that would depend on the species of the dog but on average the dog dollar is sound. English(pounds) "get it?" are probably more due to the exchange rate. Check your Wall Street Journal  everyday for an update on the currency exchange rates. 
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W1AEX
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« Reply #4 on: July 25, 2009, 06:51:01 PM »

Yup, I've seen one of those on Battlestar Galactica. It's definitely one of the smaller Cylon base ships. Very agile and tough to destroy!
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K1ZJH
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« Reply #5 on: July 25, 2009, 07:13:01 PM »

spreaders for a cage dipole??
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N3DRB The Derb
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« Reply #6 on: July 25, 2009, 07:55:29 PM »

well, I might as well use it.  I mean, it's only worth a dollar.  Cheesy

Gotta be tougher than most. thx bruce that little illustration is very revealing. I'll do it just like that.

even my radio waves will be buzzardly 1935 style.
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Steve - WB3HUZ
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« Reply #7 on: July 25, 2009, 08:02:55 PM »

Johnson made something similar, IIRC. Not sure what the hot lick is with having the feeders at a right angle to the flat-top, but it seemed to be in vogue to a while back in the day.
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W7TFO
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« Reply #8 on: July 25, 2009, 11:49:28 PM »

Aw, youse guys is all wet.  That thing is a transposition bracket, to "twist" transmission line so it won't radiate  under VSWR conditions or be sensitive to external signals on receive.  You need a few of them to make it work.....


Well, then again, size DOES matter.  My bad.
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Just pacing the Farady cage...
N3DRB The Derb
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« Reply #9 on: July 26, 2009, 03:18:43 AM »

nooooooo..... see the thing below "the thing" in Bruce's Bud catalog page? thats a transposition thingie. EF Johnson made them as well. You cant see scale in that pic, but this thing is exactly what Bruce has pictured from the Bud Catalog.

a couple of these hung on your feedline and you wouldnt be able to pull it up. This thing is massive and THICK. My radio waves will be happeningCool
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W2VW
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« Reply #10 on: July 26, 2009, 01:30:47 PM »

Derb, yer signal is already happening.
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K9PNP
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« Reply #11 on: July 26, 2009, 09:44:14 PM »

If you had a bunch of these, would make nice spreaders for a 4-wire "wide band" antenna.  Of course, you would need 8 or 10 ga copperweld wire and BIG supports to hold it up.

Mitch
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WA1GFZ
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« Reply #12 on: July 27, 2009, 08:39:45 PM »

4 wire transmission line spreader but good for a cage if they aren't too heavy.
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