[Hallicrafters] Adding Preamp toTired Receivers

[Peter May]

Hi Bill,
I'm doing a similar thing here in Australia with my Eddystone 770R VHF
receiver.
The 770R has a reputation of being a little deaf in comparison to new VHF
receivers.
I've connected a TV antenna preamplifier which really lifts up the
sensitivity of the set and makes it a joy to use.

Regards
Peter
----- Original Message -----
From: "Bill Gerhold" <k2wh at optonline.net>
To: <hallicrafters at mailman.qth.net>
Sent: Sunday, February 06, 2005 3:45 AM
Subject: [Hallicrafters] Adding Preamp toTired Receivers


> This may be seen as sacrilegious to some on this forum but bear with me.
I
> decided to experiment adding an outboard solid state preamp to a tired old
> SX-111 receiver.  While the receiver performs well as is, it never would
> receive as well as a current state of the art transceiver such as an
ICOM756
> or a Yaesu FT type radio.  Those radios always come with a preamp or two
> built in for weak signals.  No matter how much tweaking of the internal
> coils was performed, nothing would bring the SX-111 on par with these
newer
> radios.
>
> So, I ordered a 20db receive only preamp from Advanced Receiver Research.
> This preamp is a stock item and runs on 12vdc and just hooks up to the
> receive coax line.  Well made with a mounting flange and various
connectors
> on request, it is about 2" square and about 1/2" high.  It is designed to
> operate from 1-30 mhz.  I got mine with RCA phono connectors which allowed
> me to use common shielded audio cables to hook it up to the receiver.
>
> Hooking this to the SX-111, made it come to life especially on the higher
> bands, 15 and 10 meters.  It is now equal to a 756pro receive capability.
> Like I said, some of you probably believe the receiver should be used as
is
> and work with its shortcomings.  I am, but giving it a little kick in the
> pants.  What a difference a preamp makes.  This old SX-111 will now
continue
> to provide me with endless listening pleasure.  Price for the preamp about
> $ 42.00 shipped.
>
> ................... Bill (K2WH) ..........................
>
>
>
>
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