[AMRadio] 51J3 or 75A3?


Bob Peters rwpeters at swbell.net
Sat Mar 4 22:53:39 EST 2006


This is an interesting thread. I agree on speaker size. I have a 1950's 
15" Jensen in a total bass ported box being driven by a Rolls 35 watt
power amp. I have all me receivers going into the mixer at line input
level. This way you can also feed the audio into your PC for recording.
Works great Sounds great. The absolute best AM receiver I have is not a
BA but a JRC 
and wow does it play... Anyway guys great discussion and as I told Theo
he opened up the Pandora's box with that question..

Bob W1PE

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Mike Sanders K0AZ
Sent: Saturday, March 04, 2006 9:41 PM
To: w1eof at hamnutz.com; Discussion of AM Radio
Subject: RE: [AMRadio] 51J3 or 75A3?

If you want AM reception you want an HRO 50-1. Just my opinion of
course.
Unmodified
excepting normal component replacements and upgrades. I have two HRO
50T1s.
Now you
can bench a lot of receivers that are 50 plus years old and hear
different
things no doubt.
But these receivers in good condition and alignment are very tough to
beat
for "that AM
sound". My 50T1s have one purpose and one purpose only. Listening to AM.
On
higher bands
I agree with the previous poster on the NC183D. I just sold my beautiful
183D to a friend.
He is a lucky guy.
The problem with these receivers is that it is hard to get the audio
gain
pot past 1 on the
knob dial without causing some pain in a normal size room. The bigger
the
room the better.
CRANK IT UP! Use the matching speaker too.  Any big speaker will do but
the
matching
speakers work very well and look cool too.
I have a Halli R-46B hooked to my TenTec OMNI 6. Even light weight
radios
sound better
with a good sized speaker. So to do a "real AM receiver" like the SX28s,
HROs etc. justice
don't strangle them with a so so speaker. I have actually seen guys do
that.
Don't know why.
It should be obvious. Right?

K0AZ  Mike Sanders
18169 Highway 174
MT Vernon, Missouri 65712-9171
k0az at k0az.com <mailto:k0az at k0az.com>


>
> I am shopping for a receiver to use on AM. I think I want either
> a 75A3 or a
> 51J3. Which one is best for AM use as far as making pleasing
> sounds come out
> of the speaker? I used to have a 51J4 and a 75A4, and they worked fine
> (especially the 'J4), but I have heard that the 'J3 may have the best
> sounding audio section for AM. True?
>
> Thanks,
> Theo K4MO
>
>
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