Re: 100 Watts or 500 Watts
Posted by
John Ragle on
Dec 22, 2010; 4:45pm
URL: http://elecraft.85.s1.nabble.com/100-Watts-or-500-Watts-tp5853336p5859749.html
On 12/22/2010 11:30 AM, a lister wrote:
Grounded-grid is not the only way to design a tube amplifier. Although a
traditional grid-driven circuit is a little more complicated, it's one way to get more gain.
Amen to that. When I was little, "grounded grid" was vaunted as the way to use triodes without needing neutralization, even though one took a real hit on gain. Unfortunately, the old-time big amps that use/used several triodes in parallel in grounded grid still have a tendency to "take off."
The 813 and the various Eimac ceramic tetrodes are wonderful tubes, and if one can go high voltage low current, they are excellent performers. Again, when I was young, solid state devices wouldn't function in the VHF/UHF region, and the 4CXnnn series were practically a necessity. Need I refer to the beautiful amps vended by one of the early moonbounce guys?
I for one would like to see designs using these tubes. Not all of us need linear/linearized amps.
John Ragle -- W1ZI
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