Hi Dave, I don't recall where I got this from, but in some of my notes I wrote down the following limits that were listed for a T2X: Max vertical thrust: 1,000 lbs Max boom: 45 ft Max turning torque:
Assuming you are using a thrust bearing at the top of the tower, mounting the rotor lower in the tower reduces side loading on the rotor - usually not a limiting factor. The thrust bearing normally s
Suggestions: Torque the nuts to spec (from OSHA 1926.251): 1/8" = 4.5 ft.lbs. 3/16" = 7.5 ft.lbs. 1/4" = 15 ft. lbs. 5/16" = 30 ft.lbs. 3/8" = 45 ft.lbs. If you want an extra measure against loosenin
Hi Doug, The answer will depend on the wind load area of your antennas, their position on the mast, and the maximum wind speed that you wish to sustain. I can tell you that even schedule 160 (extra h
What opinions are there on the Mosley S-402 unit? Thanks N1BBR :-] Hi Duane, I acquired a used S-402 a few years ago as part of an estate purchase. Like most Mosley's, it is a mechanically sturdy an
Suggest to take a look at aluminum irrigation pipe. 3" or 4" is reasonable cost, and can produce nice bandwidth. Joining the sections together may take some ingenuity however you should be able to ge
There are lots of ways to do it. I happened to have a lot of 20' sticks of .051" wall 3" dia irrigation pipe. My solution for connecting the irrigation tubing together was to use 2.5" SCH 40 aluminum
Hi Bob, I thought the Hub City worm gear lubricant specification is ISO460, at least that is what I found on their WEB site a few years ago when rebuilding my gear box (pics at website if interested)
Thanks Bob - good info. Agree heat is a pretty good indication... Matt Right from the horses mouth. I did the conversion just three months ago so it is recent input from Hub City. I am not a mechanic
Well put John - I only want to reiterate your observations - inexpensive, easy to build out of a variety of parts, mostly forgiving, and usually quite effective. Matt KM5VI It really does not take mu
Hi Bill, Assume you have the model with LED indicators which includes additional diodes CR3 through CR8 - I was unable to locate a CR2 so assume that tag was skipped. The three diodes on the meter bo
Hi Ed, My station is not too far from you. For what it's worth, my Beverages were so noisy during the ARRL DX contest last weekend they were essentially useless. Although their performance generally
Hi Jamie, Give Carl a call. He contacted me a few weeks back to wrap up some old business. During the call he mentioned that he has been very busy since last summer. He also mentioned that he now has
A153 is a hot dip galvanizing standard, A475 is a galvanized cable standard. Matt KM5VI Anyone know the difference between ASTM A153 and ASTM A475 galvanizing for guy lines? Cargo Control has EHS guy
Hi Ed, I have used 3 x face width as circumference and modeled using equivalent round element, then modeled the antennas on top at actual dimensions and height. Don't know if that's a valid estimatio
Hi Gary, I know you are looking at the quintifilar design but thought I would share this report. I once built W2FMI 2:1 un-un based on his trifilar coaxial design using homemade 14 ohm coax on an FT2
I have serviced the bearings in several of my crank-ups for the last 15 years by drilling a small hole in the side shield of the bearing just large enough to allow insertion of a grease gun needle fi
Hi Doug, Hope you are doing well. If you only have 100 khz my suggestion is tune it for 3.700 to 3.800 for DX phone contesting to get the best results. CU on the air again soon I'm sure. 73 Matt KM5V
Hi Jeff, I have found a variety of replacement vent caps at McMaster-Carr. Matt KM5VI After reading this thread and a couple of others on the list I decided that I should service the gearbox on my HD
Hi Earl, Hope all is well with you. I know that early versions of the T2X had some issues with the brake wedge sticking and failing to retract upon solenoid release. This could cause some rotors to i