[Milsurplus] [MMRCG] "Radio Prepares for War"

[Al Klase]

On 4/27/2020 7:18 PM, Kenneth G. Gordon wrote: RE: Hammarlund Superpro
> On 27 Apr 2020 at 21:49, Hubert Miller wrote:
>
>>      I will second Al at this. When the Super Pro appeared shortly after the HRO, it completely
>>      outclassed the HRO.
> In what way(s)? Or is this a subjective opinion? Details, please.
>
Ken,

Superior in quite a number of ways:

  * Band-switched with calibrated dial displaying the band-in-use.
  * Two RF stages for better image rejection on the higher frequencies.
  * Variable IF selectivity.  Not just a crystal phasing arrangement,
    but variable coupling in IF the transformers.
  * More tuned circuits in the IF for better skirt selectivity.
  * An extremely low distortion audio amp, (Triode connected 6F6's). 
    This make signals in the noise more copyable.


And more.  See My Super-Pro Page 
<http://www.skywaves.ar88.net/commrx/Hammarlumd/SP-10/Super-Pro_SP-10.html>.

-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

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