Jeff,
I'm glad the book work was dug up. Was the Harris manuals the originals that
were supposed to be missing, or copies that Harris had when it was originally
built? What I had heard was the manuals and maybe the schematics were missing
at the transmitter site. When the place changed hands, things gets moved and
lost. Heh, I would like to see it brought to life one more time. That was one
station that the Queen used to request songs from. The only problem they said
was it drowned out everything in Canada, LOL! If I recall, they did fire it up
for the year 2000 at midnight for a short while. What power they ran, I don't
know. That transmitter reminds me of the old EF Hutton commercials, "When EF
Hutton talks, everybody listens". I'll try to dig the book out tonight I spoke
about. I'm not sure on the K factor your using. Where did you get the factor
you used from?
Best,
Will
*********** 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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