FWIW, I just use a 1/8" thick x 3/4" wide aluminum bar stock from the hardware store. Goes along the back of the desk (near the top) and is periodly tapped for 8/32 screws to accept AL/CU rated "spad
FWIW, I just use a 1/8" thick x 3/4" wide aluminum bar stock from the hardware store. Goes along the back of the desk (near the top) and is periodly tapped for 8/32 screws to accept AL/CU rated "spad
www.mcmaster.com Order online from their very informative and easy-to-use website. They don't calculate shipping costs in advance, but I've never had any rip-off shipping charges from them. Good comp
Larry, If you rig the tubing so it can "breathe" from BOTH ends, the water (from ordinary condensate) won't accumulate. Obviously, you'll want to keep out direct rain water. Don't bring one end into
I would like to add that some perforated drain pipes are not very strong...might be schedule 20. If using that, be sure to backfill equally on all sides of the pipe, leaving no voids. If you don't,
Lucky you to get such a pole for free!!! :D) Use NO concrete! The pole will shrink a little over time and there will be a crack to let water in and stay there, accelerating the rotting of your pole!
BSP's...RIGHT! "My bad" as the kids say these days. :D) _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
I once had a 4el 20-15-10 homebrew Quad, built from a QST article back in the early 70's/late 60's. It was a real performer. (Yeah, yeah subjective, etc etc.) The only problems were that I didn't use
I use Carlon plastic boxes. Google for their website to see what's available, then go shopping on the web or local stores like Home Depot, Lowes, etc. 73, Charlie, N0TT ______________________________
Steve, FYI.... The last time I talked with WB0W he had just purchased a multi-kilobuck lathe to manufacture tower insulators....that was more than a year ago. You should might want to contact him, bu
Kent, If one wants to get the "right stuff", some inexpensive plastic "chairs" that support the rebar off the dirt are available. Those can be seen at highway construction job sites and places like t
Guys, just curious....what's "inside" one of these aircraft glide slope antennas and how are they matched to say, a 50-ohm coax. One ham has one of these mounted on his car and he uses it for RFI loc
OK, thanks Jim. I made up a drawing, just for talking purposes. Just guessing here...Does THIS represent the "single port" type of glideslpoe antenna, and how it is matched to say, a 50-ohm coax? All
OK, thanks Jim. I've never found an internal drawing or photo... looked and looked...nothing....might have to find a copy of a aircraft antenna engineering book, or maybe JD Kraus' antenna book?? You
Hi Gents, Building a 7mhz ground plane/vertical dipole here....using a 69ft self-supporting, grounded, "BX" tower. I'll have the base of the GP up a little over 1/4-wave, with 9 or 12 radials, slopin
Hi Chuck, Several variables for sure. I've studied the info on W8JI's website and also the white papers from N6LF re: "A closer look at vertical antennas with elevated ground systems" Parts 1 and 2 a
If you don't come up with anything on this list for your *35G* circa 1960's tower, you might try the "Linda Hall Technical Library" in Kansas City (Google that). They have technical books, specs, cat
Doug, A very old design here in the US is the "windmill tower" made from angle iron. It has 4 legs that are spread apart by 1/5th of the height of the tower. Google for more info. 73, Charlie, N0TT _
Sorry if this is late...been on a long road trip.... I've buried cables in the ground, just inches below the surface, and never had any work their way to the top. Maybe it's because the grass grows o
That's very true. Long ago there was an article in QST...might have been by/for KH6IJ, about his method to control that spin....IIRC, he attached a cord to the brake latch and the other end to a bri