Globe King 500 Question

Garey Barrell k4oah at MINDSPRING.COM
Thu Jun 5 23:35:26 EDT 2003

George -

A Globe King should put out about 325 W at 330 mA Plate current on
80M.  I have heard people claim 400W, but I suspect wattmeter problems
there!  I have also heard that a particular brand of 4-250 (I think
the old [real] Amperex, but not sure) would put out 350-375, but I
have never actually seen one do it.

Do you have the three position loading switch of the 500, or the six
position switch of the 500A and up?  Assuming your GK is unmodified,
and the Plate and Screen voltages are correct, I would suspect that
your loading capacitors have gotten leaky.

Let us know what you find!

73, Garey - K4OAH

----- Original Message -----
From: "George Maier" <George at MAIERGROUP.COM>

> Just wondering what you GK-500 owners are seeing for power out.
> I can't seem to get more than 250W, with either a 6156 or a 4-400AX
in the
> PA socket.
> The Power supplies have been recapped, voltages & currents look OK,
> can't load plate any higher than 290mA into a 50 Ohm load.  All of
the meter
> shunts have been replaced also. What am I missing ?
> Thanks for the read!
> George - K1GXT

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