Folks: Can/Does a properly designed HI-Pot tester test, permanently damage a HV capacitor if there is arc-over? i.e. when if the HI Pot punctures the dielectric, is the the resulting arc damage perma
I am reviewing the engineering calculations for a Triex LM 354 tower, a paper copy of which is signed and sealed by a Civll Engineer. The 19 page doc, gives the uninitiated a small, insight into the
You might want to look up Molydenum grease, or possibly litnium grease to see if it is corrosive. (I cant rember which one I used, it came out of a metal squeeze tube, and was an opaque, tan color gr
Just for clarification: Paraffin in my American Usage, refers to a synthetic form of candle wax. Paraffin (sp?) in the British usage refers to Kerosene. de Pat.... aa6eg@hotmail.com ________________
I used to have an Allied Electronics reference guide from the 60s That had a formula for big audio inductors where the bobbin dimensions(diameter and spool length) the wire diameter were entered and
Re 550 parachute cord: I used to load that stuff with my bod, back in the good old days...28 foot " doube L" cheapo back in the early 70s. Also packed and serviced parachute systems as a rigger...lon
Hello Tom and group, I have a tower trailer; Photos follow: http://groups.msn.com/towertrailers/shoebox.msnw?action=ShowPhoto&PhotoID=1 http://groups.msn.com/towertrailers/shoebox.msnw?action=ShowPho
I found the similar larger model, called Pyropen, with a nifty piezo ignitor and adjustable heat control, and multiple tips to be preferable to the Portasol, due to the higher heat power available...
(snip) ................................... A google Image search using "Attenuation +Rain" provided a lot of information about path attenuation vs rate of rainfall, vs frequency...eg: http://sina.sh
Folks, A little research produced Map and photo websites of your address, assuming 22 Attunga St Woollahra NSW: Say you want true north accurate to 2-4 degrees: Use degrees, decimal degrees for your
Steve, Terminate the incoming transmission line wires with stout bananna plugs, mount corresponding bananna jacks in the plexiglass panel. Use a small amount of silicone dielectric grease on the plug
Folks: A true 'giant' in telecommunications, the Jamesburg Earth Station, COMSAT 'A' dish is for sale on Ebay.. Sad to see that this beauty has not found a niche application to continue use. It was a
Folks: I had a friend in 6th grade lose an eye with a simple rubber band and paperclip that rebounded back into his eye when he shot it...Please wear Goggles.... Also, a while back I came across the
Hi Doc, Looks like a relatively high uH coil, probably way in excess of needed inductance for a 160 m project.. Looks like a capacitor across it, that I cannot read the value of, but could be used as
Found a large number of military tech manuals of masts and antennas that might be useful... A common system found cheap surplus here in California is the AB 577 "Rocket Launcher" mast...A complete ma
Hello Lee, and the group, I wanted to get better at using Google Maps, (SUCH AN INCREDIBLE PROGRAM, http://www.maps.google.com ) found Blanco quickly, (type in Blanco Texas at http://www.maps.google.
Hello Steve, and Talkians: Interesting concept.... but plausible, at least in April. All the other months of the year, some years back, Fermilab had a Ferret, named Felicia, race through the Cyclotro
Folks: Appreciate the discussion about screw anchors/deterioration... Now I have an idea/possible reason for the strain insulators that are always on the power company's guys. At first I thought it m
Thanks for that info Pete. I wonder if there is a problem with coating the undergroud portion, if you do not have a PERFECT insulative seal with the coating, if the very small, say, pinhole that rema
Folks: Been there, done that, on a Rohn 25, 50 footer free standing, of a ham friend, donating some tower work....The tower was professionally installed, with what looked like a 5' by 5' square concr