Jeff,
The photo I'm looking at here shows 5 turns and 3 turns of copper tubing. The
photo is of the link-coupled output coils and the Faraday shield for the 500 kW
monster. Also, I believe the missing books were on the 500 kW or the 50 kW by
Western Electric which is the 500 kW's driver. Below is a link to the photo;
http://www.j-hawkins.com/wlw/wlw6.jpg
*********** REPLY SEPARATOR ***********
On 5/16/06 at 7:21 PM Xmitters@aol.com wrote:
>In a message dated 5/16/06 5:46:07 PM Central Daylight Time,
>amps-request@contesting.com writes:
>
><< I think I have some info here in a transformer book, and will try to
>locate the one it's in. To my opinion, those shields will have to be taken
>into
>account on the formulas also. Oh by the way, believe it or not, most of
>the book
>work is missing on this transmitter! Where it went, I don't think nobody
>knows.
>
> Best,
>
> Will >>
>
>Will,
>
>Thank you for the response. The manual is alive and well at Harris
>Corporation. I am actually working with a person there on a preservation
>project for the
>500 kW documentation and paperwork. I have nearly a full set of "derived"
>schematics that I CADD'ed up from the circuit descriptions in the
>transmitter
>manual so if we don't find the real ones, we can use the ones I'm drawing.
>
>We still have a lot of scanning to do on the manual; most of the parts
>list
>section is done but we have a lot of manufacturer's booklets to scan on
>such
>things as the 2400 Volt three phase oil circuit breaker, power
>transformers,
>relays, pumps, you name it. There is a booklet for almost every piece in
>that
>transmitter!
>
>My job is to do some of the scanning and to do the mathematical
>derivations
>for all of the circuits, which is nearly complete except for this stupid
>RF
>tank problem I have. If you think this coefficient of coupling of 0.143
>that I
>came up with is reasonable and practical, then I guess I can say I'm done
>:-)
>
>I do a lot more calculating than I do building, so I don't know if this
>coefficient of coupling figure is practically attainable or not. I'm
>starting to
>think that it is because it seems like you could couple a lot more
>magnetic flux
>lines with two pancake coils face-to-face than you could with two solenoid
>coils. You builders out there, do you agree? Disagree?
>
>Kind Regards,
>
>Jeff Glass
>Northern Illinois University
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