Topband: Preamplifiers

[Charlie Cunningham]

Hi, Eddy

I used one of the old Ameco vacuum tube preamp/pre-selectors, that I
borrowed from my friend, bill, K4CIA, for my KAZ terminated receiving loops
several years ago. It was great!  - had plenty of gain and because it was
vacuum tube, it wasn't susceptible to damage from transmit RF picked up in
the loop. I no longer have the KAZ loop, but I'm going to build another one.
Bill had a second newer JFET version o fthe Ameco, that I bought from him.
I expect I'll have to take more care with protecting the JFET device. T he
old vacuum tube Ameco pream work great onn 160, 80, 40 and 30m, where I used
it. F course I didn't need it with the 5-band quad for the higher bands -
mostly on loop on 160, where the antenna gain was low, but it was a very
quiet antenna, and I heard things on 160 that I couldn't hear before. I ran
the Ameco into the receive antenna input on my FT-1000MP. Worked great!

73,
Charlie, K4OTV\

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Eddy
Swynar
Sent: Monday, February 02, 2015 5:56 PM
To: Andy YO3JR
Cc: topband at contesting.com
Subject: Re: Topband: Preamplifiers


On 2015-02-02, at 4:08 PM, Andy YO3JR wrote:
> 
> Can someone recommend me a good  preamplifier for the beverage 
> antennas on 80/160m?

> Best regards, Andy YO3JR
> 





Hi Andy,

All I ever used here was an old AMECO-brand pre-selector that I paid $10.00
for, I believe, at a Hamfest...

If signals get too loud & distort, all I do is reduce the gain on the thing.
Works perfectly for me, even if it isn't "...politically correct" in
to-day's Topband scene...!

~73~ de Eddy VE3CUI - VE3XZ
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