[R-390] SP-600 - NRC Type 159 - Radio R-450/FRR-28

[Bob Camp]

Hi

So we now have more than one radio running off of a weird impedance 
balanced line.

Again with my favorite nagging question:

What the heck kind of gear drove these inputs ?? There must be some 
sort of record out there !!

	Take Care!

		Bob Camp
		KB8TQ



On Oct 20, 2004, at 5:28 PM, Rbethman wrote:

> Gang,
>
>     You MAY remember the following:
>
> 	     I've acquired a "peculiar" Hammarlund SP-600.
>
> 	     It is a Model J-11, s/n 9758. [No "X"]
>
> 	     Modified by Northern Radio Company for the Diversity Aspects.  
> NRC
> 	     Type 159, Model I, S/N 740.
>
> 	     Tagged Receiver, Radio R-450/FRR-28.
>
>     I have finally gotten hard copy documentation for this "animal".
>
>     If and when opportunity allows, plus permission from the supplier, 
> a private individual, I hope to do what it takes to get a copy loaded 
> on BAMA.
>
>      One item of note in the documentation.  The antenna input is 
> designed for 100 Ohm balanced line - in spite of the fact that it IS 
> an SO-239 connector.
>
> -- 
> <                      Bob Bethman - N0DGN
> +-------------------------------+----------------------------------+
> | N0DGN AMRadio Manassas, VA    |    REAL Tube Radio and AM        |
> +-------------------------------+----------------------------------+
> |       Manassas Radio - Home of Homemade Kielbasa & Pirogi        |
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> | Bob Bethman                \\\|///     " The absence of a danger |
> | rbethman(at)comcast.net   \\ ~ ~ //      signal does *NOT* mean  |
> |                           (/ @ @ /)      that everything is OK " |
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> |               <http://home.comcast.net/~rbethman>                |
> | 1 BC-610I w/BC-614I,1 T-213/GRC-26 w/BC614I 1 '51 Collins R-390A |
> |  SP-600/NR Type 159, Heath DX-60, Apache, Mohawk, SX-101, HT-32A |
> +------------------------------------------------------------------+
> |           Amateur Astronomer - Celestron Nexstar 8               |
> |             12" f5 Dob coming soon!  Being built                 |
> |                  Meade ETX-60 (Got it back!)                     |
> |               38 Deg 46.8' N - 77 Deg 28.5' W                    |
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