[Collins] Transformer ID

[Dr. Gerald N. Johnson]

On Fri, 2010-01-01 at 14:49 -0500, TVComlGuy at aol.com wrote:
> Happy New Year to the group,
> 
> I have a Collins Plate transformer I would like to identify.
> 
> It has a part number of 6720531009

I don't have any idea. It would be about right for a 30L-1, except the
30L-1 has three secondaries and uses a voltage doubler instead of a full
wave this one might.

Technically speaking the part number should have a couple dashes, in the
form 672-0531-009. The 672 says its a transformer, the 0531 is the spec
sheet, and the 009 the particular part on a multiple part spec sheet,
that came into use long about 1961 or 1962. Before that the extension
indicated the paper size for the drawing, but used only 001 through 005.
> 
> It has two 115 volt inputs, and one 2250 volt center tapped output
> 
> Thanks,
> Ron, kb0war

Googling the part number with dashes has 8 hits. One says its rated at
565 ma (usually that means DC) output. And I see the label says that.

-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer