RE: [Elecraft] Help Identify a Balun
I typed the Model # incorrectly. It is UB-1. Wayne Burdick pointed me to a reference to a coaxial Ultrabal. The one I have is not a coaxial balun. It is a tube 6.75 inches long and 1.25 inch in diameter. It has an SO-239 on one end, and screw terminals on the other end. If no one can identify this I can take it into work and x-ray it. Jeff Burns AD9T -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Burns Sent: Thursday, March 24, 2005 23:34 PM To: 'Elecraft List' Subject: [Elecraft] Help Identify a Balun I was given two baluns, but I have no information about them. They are marked Ultra-Bal 2000 Model UV-1. Can anyone tell me what kind of baluns these are? I plan to order the parts for a new horizontal loop antenna on Monday. I need a balun to transition from open line to coaxial cable. If the balun I have will work I can scratch a new one off my shopping list. Thanks for the help. Jeff Burns AD9T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Help Identify a Balun
Jeff: A dollar will get you $10 that it's a 4:1 BALANCED WIRE balun. 73, Tom N0SS At 08:11 AM 3/25/05, you wrote: I typed the Model # incorrectly. It is UB-1. Wayne Burdick pointed me to a reference to a coaxial Ultrabal. The one I have is not a coaxial balun. It is a tube 6.75 inches long and 1.25 inch in diameter. It has an SO-239 on one end, and screw terminals on the other end. If no one can identify this I can take it into work and x-ray it. Jeff Burns AD9T -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Burns Sent: Thursday, March 24, 2005 23:34 PM To: 'Elecraft List' Subject: [Elecraft] Help Identify a Balun I was given two baluns, but I have no information about them. They are marked Ultra-Bal 2000 Model UV-1. Can anyone tell me what kind of baluns these are? I plan to order the parts for a new horizontal loop antenna on Monday. I need a balun to transition from open line to coaxial cable. If the balun I have will work I can scratch a new one off my shopping list. Thanks for the help. Jeff Burns AD9T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Help Identify a Balun
Jeff. One sure way is to connect a 50 ohm dummy load across the screw terminals and measure the impedance with an antenna analyzer. 7MHz is a good frequency to use. If it is a1:1 balun the analyzer will read 50 ohms. If it is a 4:1 balun, the analyzer will read about 12 ohms. Alternatively apply power with a transmitter through a SWR meter, and measure the SWR. At 09:29 AM 3/25/2005, you wrote: Jeff: A dollar will get you $10 that it's a 4:1 BALANCED WIRE balun. Sounds like a 1:1 bead balun around a coax interior. 73, Tom N0SS At 08:11 AM 3/25/05, you wrote: I typed the Model # incorrectly. It is UB-1. Wayne Burdick pointed me to a reference to a coaxial Ultrabal. The one I have is not a coaxial balun. It is a tube 6.75 inches long and 1.25 inch in diameter. It has an SO-239 on one end, and screw terminals on the other end. If no one can identify this I can take it into work and x-ray it. Jeff Burns AD9T -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Burns Sent: Thursday, March 24, 2005 23:34 PM To: 'Elecraft List' Subject: [Elecraft] Help Identify a Balun I was given two baluns, but I have no information about them. They are marked Ultra-Bal 2000 Model UV-1. Can anyone tell me what kind of baluns these are? I plan to order the parts for a new horizontal loop antenna on Monday. I need a balun to transition from open line to coaxial cable. If the balun I have will work I can scratch a new one off my shopping list. Thanks for the help. Jeff Burns AD9T 73, Chas, W1CG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Help Identify a Balun
I was given two baluns, but I have no information about them. They are marked Ultra-Bal 2000 Model UV-1. Can anyone tell me what kind of baluns these are? I plan to order the parts for a new horizontal loop antenna on Monday. I need a balun to transition from open line to coaxial cable. If the balun I have will work I can scratch a new one off my shopping list. Thanks for the help. Jeff Burns AD9T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
