[Boatanchors] 51J3 vs SP600?

[Keith Densmore]

OK, my two cents worth.
Every single word said on this discussion is true. But if you want to just
have ONE radio, my vote would go for a R-390 non A. It's stable enough for
RTTY. It sounds real good on SSB due to the fine AGC circuit and even
better if you do the product detector mod. It sounds wonderful on AM, with
up to 16 kc of bandwidth. . It's selective  enough to do well on CW. It's
sensitive enough to hear a f__t in a wind storm.
OK, it's not a wonderful bandcruiser but after a year you will have wrists
like Hercules!

Regards,
Keith, VE3TS

----- Original Message -----
From: "Al Klase" <skywaves at webex.net>
To: "Boatanchors List" <boatanchors at mailman.qth.net>
Sent: Tuesday, June 21, 2005 3:46 PM
Subject: Re: [Boatanchors] 51J3 vs SP600?


> Eugene,
>
> If you want to find them, us a Collins.
> If you want to listen to them, use a Hammarlund.
>
> It's a case of the new versus the old, and a good historical
> illustration of what happened in receiver design around 1949.
>
> The 51J is miles ahead in frequency accuracy due to it's
> crystal controlled first oscillator, and carefully
> calibrated tunable second IF. (This is a landmark radio in
> that sense.) It lacks the broad IF options available on the
> SP-600 and has a permanent 60Hz hum in the output because
> the audio xfmr is too close to the power xfmr.
>
> In short, the SP-600 is the best band cruiser.  It's the
> high-water mark for tunable-first-oscillator designs.  If
> you're going to listen to 3885 or WBCQ, it the one.
>
> If you need to keep a sked with a distant station on
> 29,057.5KHz you can depend on the Collins.
>
> Regards,
> Al
>
>
> Al Klase - N3FRQ
> Flemington, NJ
> http://www.skywaves.ar88.net/
>
>
> Eugene Hertz wrote:
> > Anyone have an opinion in comparing a Collins 51J3 / R388  with a
hammarlund sp600 for general use?
> >
> > Eugene
> >
> >
> >
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>
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>
>