I've moved this over here, out of the SALE echo ;-)
 > -=> On 08-16-97  16:40, Jeff Edmonson said to Ivy Iverson, <=-
 > -=> About transformer,..." <=-
 > Hi, Jeff;
 >  z> JE> Looking for a 7.5v @ 12Amp transformer.
 >  z> JE> Anyone?
 >  z>That's an oddball.  What's it for?
 >  JE> Filaments for a Eitle McCullogh 450TL (Eimac).
 >  JE> The BC-610 used to use a singe 250TH in the final, modulated by a 
air
 >  JE> of  100TH's.
 > AH YES!  I remember the BC-610!  Worked on them in the
 > Army!  Wish I had one, but in the interest of avoiding moderator
 > action, I say no more.
Got a pair of 250TH's here, in a homebrewed AM rig, that I'm currently in the 
process of building a modulator for.
Thought about using the 450TL's, but with a pair of 'em, it's somewhere in 
the area of 7.5v @ 25Amps, just to light up the filaments!
Instead, I belive a more wise choice would be to use 4 811's in push-pull 
parallel.
I have some other ideas for how a properly modulated AM rig should work, and 
definatly ways of increasing the fidelity!
Soon, I'll have a text file from John/WA5BXO on how to feed class B 
modulators.  Talked to him briefly last night on the telephone, and he told 
me some of it - GREAT technical data, there!
   73 = Best Regards
   -Jeff KA5THB
   ka5thb@bigfoot.com
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