[Amps] 2 Tubes in Parrallel:

Bruce Osterberg n9bx at mchsi.com
Thu Nov 8 19:59:49 EST 2007


 From What I read when you have two tubes in Parallel, Like two 3-500 
the RL is 1/2 of what it would normally be if one tube was used.  Since 
the good people at Ameritron have shown us the schematics for the Al-84, 
(2-3550), al-1200 and al-1500.  I wonder why all of the same components 
are used in both AMPS?  Like Tank circuit and Capacitance Values.  Does 
this not effect the operating Q of the final Tank circuit?

I only ask this in hopes that someone could shed some light on my quest 
to build a 2 x 8877 Amp.

If I had 3600 Volts on the Plates of Two tubes, and figuring 1.82 x 1.5 
amps that should give me a RL of 1318.  Or 1300.  Should I design my 
Tank circuit for that value?  In everything I read this is Correct. 
Please give me your thoughts.

73 Bruce N9BX


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