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

[Llgpt at aol.com]

Bob,

"ALL" the SP-600's were designed for 100 ohm line RG-62A/U.

Just align it using 50 ohm input and all will be ok.

Les Locklear
Gulfport, Ms.
Collins 51J4
Collins R-390/URR
Hammarlund HQ-120X
Hammarlund SP-600JX-14 
Ten Tec RX-350D
Yaesu FRG-100
Monitoring from the Gulf of Mexico



In a message dated 10/20/2004 5:28:28 PM Eastern Daylight Time, Rbethman <rbethman at comcast.net> writes:

>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        |
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>|       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  |
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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                 |
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