[Boatanchors] First radio

[Al Klase]

Preston,

"If you want to find them, use a Collins.  If you want to listen to 
them, use a Hammarlund."

The primary advantage of the Collins receivers, 51J's and 390/390A, is 
that they can be set to a desired frequency within a couple of Khz.  
This is not the case with receivers with tunable first conversion 
oscillators like the SP-600, especially on the higher frequencies.  
However, you could cheat by adding a modern digital frequency display 
that counts the oscillators, and subtracts out the IF frequency.

Otherwise, the performance is nearly equal.  Neither is really good on 
SSB without modifications.  The SP-600 is easier to work on in both the 
electronic and mechanical sense, and sounds better on high quality AM 
signals.

Hope that helps a little.

Good luck,
Al



On 8/10/2012 10:34 PM, Preston Clark wrote:
> i am currently looking at getting my first boatanchor radio i am
> tossed between the collins 390 or the hammarlund  SP-600 i plan on
> using it it for general listening  and i need to know the antenna
> specifications for these and if one better than the other  i currently
> live in a house that i can use a outside antenna  but need the
> flexibility of maybe using a loop antenna if anyone has done that
> also any ideas of adding a transmitter of the same period  thanks
>
> Preston kf5evv
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/