[Collins] the 30K-4 has arrived!

[Dr. Gerald N. Johnson]

The wire number 7 is probably the centertap wire, most likely grounded 
or returned to ground through the plate current meter needing only 600 
volt or less insulation. The other two wires would be going to the 
plates of the rectifier tubes and heavily insulated for 1500 to 2000 
volts, though the conductor size will likely be the same. I'm sure the 
original assembly drawing showed that number 7, the manual may or may 
not. You may have to trace the circuitry visually and with an ohmmeter 
to be sure of the connections.

73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association.

On 4/17/2014 1:09 PM, W2HX wrote:
> Thanks to everyone's help with decision to acquire this. I did it and it is in place, the iron has been connected and the decks have been installed. I am waiting for a manual from W7FG before I plug her in (she was working before I transported her).
>
> http://www.w2hx.com/x/Collins/30K-4/Pix/IMG_5315.JPG
> http://www.w2hx.com/x/Collins/30K-4/Pix/
>
>
> I am also looking for confirmation of the output wiring on the HV transformer. Picture of what I did below.  There is a small harness coming from the right side of the cabinet (looking into the rear) with some yellow and orange wires. Two of the wires are the primary input to the HV transformer. Can anyone confirm that the center of the 3 output connections uses the yellow wire with the number "7" on it? I did make a note that a number 7 wire goes in the middle, and yes, this yellow wire had a label on it with the "7" on it. But I just worry. It doesn't look as "stout" as the other wires so I wanted to be sure. Just looking for confirmation if possible.  The picture below is how I hooked it up, and I hope it is right!
>
>
>
> http://www.w2hx.com/x/Collins/30K-4/Pix/IMG_5338.JPG
>
>
> 73 Eugene W2HX
>
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