[Amps] WLW 500 kW transmitter

[Xmitters at aol.com]

In a message dated 5/16/06 5:46:07 PM Central Daylight Time, 
amps-request at 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