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Yes George, I mispoke, you are correct
It says in very large letters on it " TRANSFORMER" Since transformers are touted as being efficient I was wondering how it would compare with the normal tuner. Half of the challenge for me was to come up with an inexpensive switching system where the input was stationary while the rest were switched thru and then repeated for the next input e.t.c. With that being solved I look forward to finishing and then playing with it Regards Art "George, W5YR" wrote in message ... Art, are you sure you have a balun? Your description sounds like a tapped r-f transformer. A balun, of course, is completely different from a transformer in that it is a "transmission line transformer" which is made of short transmission line sections instead of "windings." If a balun is made with line sections of Zo, then the load must be an appropriate multiple of Zo and purely resistive for the balun to function properly. Usually it is best to let a balun do the current steering and keep the outer braid of the coax "clean" and do the impedance matching elsewhere, as in a tuner. Just a thought . . . -- 73/72, George Amateur Radio W5YR - the Yellow Rose of Texas Fairview, TX 30 mi NE of Dallas in Collin county EM13QE "In the 57th year and it just keeps getting better!" "Art Unwin KB9MZ" wrote in message m... Seems like a lot of hams with limited resources are still compelled to operate on many bands with just a long wire and a tuner. The wire is inexpensive but the tuners are not. Thus my present project. I was given a Palomar enginnering balun with 5 female connenection which by selection can match a antenna in steps from 5 ohms to over 450 ohms in a series of steps. I am presently rigging it up so that all steps can be switched thru remotely by a single motor. The switching arrangement is the main challenge since inexpensive means simple. Now I have not measured losses of the balun before hand because the switching challenge is what is driving me. Anybody have any thoughts about what I should expect from this balun other than knowing that it is not a tuner as is generally known since it does not have the ability to obtain the priceless 1:1 condition that so many desire? Regards Art |
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