This might be a bit of work to build but it looks like
it would be very good.
http://xoomer.virgilio.it/sergiocartoceti/qex_march_april_03.htm
73 Jim SM2EKM
--------------------------------------
>>
>>Jim Idelson wrote:
>>
>>
>>>For years, I have heard that the Ameco nuvistor-based tunable preamp is
>>>the
>>>best available for a contest station. I have one that I use for
>>>Beverages, and
>>>I really like it a lot. But, it was designed a long time ago, and I'm
>>>wondering
>>>what else is out there that performs as well or better. I like the fact
>>>that
>>>the tunability feature provides some rejection of out-of-band signals in
>>>the
>>>multi-transmitter environment. It runs on 110vac, has a convenient power
>>>switch
>>>and a bypass switch, as well.
>>>
>>>Suggestions?
>>>
>>>73,
>>>
>>>Jim Idelson K1IR
>>>email k1ir at designet.com
>>>web http://www.k1ir.com
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