[WRL] Globe King models

[Charles Ring]

I've been long aware of the 500, 500A (like mine), 500B, 500C, the so 
called "500D", and the 400 series but was unclear about the 400 
sub-versions.  Now I found "Ham Equioment Buyer's Guide" by Alton Brand 
WA9MBJ from 1975 which I've had since then but forgot about. Before the 
500 series I see a Globe King 275, 400, 400B and 400C, plus three Globe 
Champion models that look more like Globe Kings than the later 
Champions. Is there any info available about these variants? Maybe the 
short descriptions in WA9MBJ's guide are the best there is? BAMA has 
manuals for the GK 400, 500,500A,500B and 500C but not the others.

-- 
*Charles Ring W3NU*