[ADXA] Ameco PT-3 preamp

BILL KENNAMER k5fuv at prodigy.net
Wed Jan 22 23:51:48 EST 2025


The more gain it has, the worse the s/n ratio. It amplifies noise too. Probably 10-20 db is enough.
FUV


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On Wednesday, January 22, 2025, 9:52 PM, Dennis Schaefer <dennisw5rz at gmail.com> wrote:

I bought Lenny's PT-3 preamp years ago but recently connected it  for the first time.   I thought even though it wouldn’t be at the antenna feedpoint, it might be helpful with low band receive antennas with low output.  
I tried it and it has gain, but it doesn’t really seem to help the S/N ratio.  I haven’t found a lot of online info yet, but it seems that it is mainly helpful on higher bands.  It probably would have helpful on one of my old tube rigs that lost sensitivity on 10M.  
I just wondered if anyone else had any experience or tips for this piece of equipment, especially for use on 160 or 80 meters.
73,Dennis/RZ______________________________________________________________
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