[Hammarlund] Ronald McDonald's SP-600

[D LAST_NAME_SHORT: T]

I believe Northern Electric modified stock SP600's under govt contract (Cold War) for the Navy? The mod was specifically for diversity RTTY reception. 

I've had the model in the photo for a decade or more...it is a gem and pleasure to use. Of course I'm using it as a straightforward general purpose receiver (500 kHz thru 56 mHz). No product detector but it copies sideband fine using RF gain and volume controls. 

I am thinning out my boatanchor collection, and this receiver is available for those who wish to add it to theirs.

73,
Dan
K0DAN
Kansas City

> On 03/06/2026 9:41 PM CST Jacques Fortin <jacques.f at videotron.ca> wrote:
> 
>  
> Northern Electric ?
> OMG, why ?
> I worked for the company when it became Nortel.
> You do not want to know what happened with...
> 
> 73, Jacques, VE2JFE in Montreal
> 
> Perhaps Northern Electric. The built SP600 fro diversity use. The JX-17 version of the SP-600 was very similar. AFAIK these were painted in standard SP-600 colors.  It's possible fairly large lots of receivers might have been finished in custom colors for some customers.Sent from my GalaxyRichard KnoppowLos angelesWB6KBL
> 
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