[Amps] adding second tube to AL1200

[Gudguyham at aol.com]

In a message dated 5/17/2006 4:23:10 P.M. Eastern Standard Time,  
vic at rakefet.com writes:

Off the  top of my head, you would probably need an outboard power 
supply, since  it's doubtful that a larger transformer would fit.  Then 
you'd need  to change the input network components for half the 
impedance, and  likewise the output pi-network.  You might not have 
sufficient range  in tuning/loading capacitors for the low bands for a 
reasonable Q.   Of course, Ameritron is known for borderline tank 
inductors, so you might  have to replace the coils with ones made of 
larger wire or tubing to  handle the RF current.  And you'll need a 
bigger filament  transformer.  Probably you'd have to modify the metering  
circuits.  Hmm, let's see, did I forget anything?  Oh yes, the  blower 
capacity will be inadequate.

Why don't you just build a new  one?
-- 
73,



I agree 100% Vic.......not a good idea at all.  73 Louie  W1QJ