[AMRadio] Minature Mobile Transmitter


bcarling at cfl.rr.com bcarling at cfl.rr.com
Tue Oct 4 05:21:53 EDT 2005


On 3 Oct 2005 at 0:39, Bob Bruhns wrote:

> That's amazing.  Can't argue with success.  And
> the 7.5W-300V-16K p-p adds up.  The published
> 12AX7 plate dissipation spec must be overly
> conservative, and the cathode must be pretty
> efficient.
> 
> I always thought of the12AX7 as an audio preamp
> tube.

It is... There HAS to be a good reason why manufacturers 
used things like 6AQ5 and 6BM8 for 4 watt audio output 
stages instead of a 6C4 or 12AX7 !!





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