[Premium-Rx] HRO-600

[Bjarne Mjelde]

Nice work, it brings back some memories...

In the mid-80's, I purchased one of these from a Norwegian DX-er, actually  
it was the 602 version with decadic switches.  I remember it being rather  
insensitive below 1 MHz. Also the motorised preselector gear didn't work.  
And every time I switched the preselector on, the most agonising noise  
came from the motor. As time went, the VFO seemed to drive off on its own,  
in the end I was no longer able to tune the radio. At the end I sold it to  
someone who said he might repair it, probably for far less than it was  
worth.  That said - it was no DX machine with its decadic switch tuning.

I have heard that the development costs for the HRO-600 was what finally  
toppled National Radio Co.  True or false?


-- 
 From The World's Northernmost DX-er
Bjarne Mjelde
Berlevag, Arctic Norway
www.kongsfjord.no
weblog: mjelde.blogspot.com

På Mon, 01 Aug 2005 09:51:27 -0400, skrev James C. Garland  
<4cx250b at muohio.edu>:

> Hi Gang,
>
> As some of you know, I've been restoring for the past several months a  
> National Radio Company HRO-600, the last of the famous "HRO" series of  
> communications receivers.  The HRO-600 tuned 16 kHZ to 30 MHz, and  
> represented the state-of-the-art in receiver design for the mid-1960s.   
> It's an unusual radio, with a number of interesting features. Now that  
> I've finished working on the receiver, I've added a couple of pages on  
> it to my website. If you're interested, you can check out this  
> seldom-seen receiver at   
> http://www.w8zr.net/vintage/receivers/hro600.htm  I'd also appreciate  
> any suggestions or comments on improving the presentation.
> Tnx,
>
> Jim Garland W8ZR
>
>
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