[AMRadio] WTB - MURCH UT-2000A


Larry D. Barr (K5WLF) k5wlf at rebelwolf.com
Sat Jun 12 22:50:00 EDT 2010


Or sell it to the OP who wants one...

73,
ldb
K5WLF


On 06/12/2010 09:43 PM, david oneill wrote:
> if you hate it that bad take it out back and shoot it .
>
> On 6/12/10, Donald Sanders<w4bws at yahoo.com>  wrote:
>> I am not famiiar with the BC 610 output circuit however it may be link
>> coupled and 600 ohm or other high impedence as most of the transmitters in
>> the late 30's and 40's. The Murch is designed to match an antenna to a 50 to
>> 75 ohm load. Therefore you may be exceeding what the Murch is capable of
>> doing.
>> Don
>>
>>
>>
>>
>> ________________________________
>> From: rbethman<rbethman at comcast.net>
>> To: Discussion of AM Radio in the Amateur Service<amradio at mailman.qth.net>
>> Sent: Sat, June 12, 2010 5:22:36 PM
>> Subject: Re: [AMRadio] WTB - MURCH UT-2000A
>>
>> I don't care if Marconi himself designed it.
>>
>> It will NOT tune a BC-610 to ANY antenna!
>>
>> Even after setting the BC-610 to the 400W ME-165G 50 ohm dummy load
>> first.  It would melt the final before it managed to "match" anything.
>> 250THs don't grow on trees!
>>
>> I have the manual.  I have checked it against the schematic in the manual.
>>
>> I'd take one of the Heath tuners, the high power ones, ANY day over the
>> Murch!
>>
>> I don't know how long others have been at this, but that has been my
>> experience since 1980!  There is equipment, then there is purported
>> "ultimate" that is nothing but junk.
>>
>> Bob - N0DGN
>>
>> On 6/12/2010 6:12 PM, Robert Nickels wrote:
>>> The Murch UT-2000A is a commercial version of the classic "Ultimate
>>> Transmatch" designed by Lew McCoy and featured in the July 1970 issue of
>>> QST and numerous ARRL handbooks.    It's called "ultimate" because it is
>>> able to match coaxial-fed antennas, end-fed wires, and with the addition
>>> of a 4:1 balun, balanced feeders.  The manual is on BAMA and I can send
>>> you a copy of the QST article if you need it.
>>>
>>> Add a good SWR/power meter and once you learn how to tune it,  the Murch
>>> will match most anything you can hook to it, 160-10 meters, up to a KW.
>>>
>>> 73, Bob W9RAN
>>
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