>How should a proper schematic configuration of a cathode-driven Amp
>be done with a Tetrode ?
>
>I've seen a couple of variations:
>
>1) Both grid, Screen grounded
>(guess its a common way of solving it....
> Also described in the book:
>Power Vacuum Tubes Handbook, 2nd ed)
>
>2) Grid to ground , Screen to DC-screen -voltage
>(a few russian schematics)
>
>3) Grid to Cathode, Screen grounded
>(from AG6K's excellent site)
>
? This is only for Class AB1/'super cathode' drive. Power gain is only
c. 5x but superb linearity.
>Which one is the 'proper' way to do it?
>
>Does it depend on what kind of tube being used?
>
>SM0EJR /Joe
>
>
>
>_______________________________________________
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>Amps@contesting.com
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>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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