[TMC] Parts or power supply wanted for the SBE exciter

Roy Morgan roy.morgan at nist.gov
Mon May 1 10:19:27 EDT 2006


At 01:50 PM 4/29/2006, John Hensley wrote:
>I'm looking for a power supply or what used to be the power supply for the 
>SBE-3 through 10 series.

John,

>   I'm told these are not easy to find.

That is correct.  I FINALLY found one at an estate sale not too far from my 
home, but it was partly by chance that I located it.  I now have three 
SBE's and one supply.

I have an SBE mounted in a GPT-750 with the internal power supply. It's 
main power transformer was missing, and at long last I found a close but 
not quite the same size power transformer I can put in there.  I wanted a 
split primary transformer, and the B+ winding is rather low voltage.  By 
the way, the supply unit mounted inside the GPT-750 is the same chassis as 
the rack mount verstion, but without the front panel.  There is a one-U 
(1-3/8" ?) panel just above the SBE in the transmitter middle drawer that 
carries the fuses and indicator lamps for the supply.

>  I'll settle for a parts unit if it has the chasis.  I also need a square 
> TMC nameplate.
>
>According to the information I have the commercial type number was 
>something like A1397 (not positive); the military type number is supposed 
>to be PP-1769 (again not sure).

Nomenclature I have is:
PP 174/URA-23  but thls may be a typo.

But a cross reference list from the TMC web site shows:

Civilian ......... military................ NSN
A-1397           PP-1769/URA23  5820-823-2980

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
Home: 301-330-8828 Cell 301-928-7794
Work: Voice: 301-975-3254,  Fax: 301-948-6213
roy.morgan at nist.gov --



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