[AMPS] Tuned Input

[Rich Measures]

>Am in the process of building an 811A amp. 4 tube variety. I'm
>up to the tuned input and have some questions. I see in Orr's
>handbook a tuned input circuit using a tunable slug coil and a
>cap for each band. This differs from the usual pi type input
>cicuit. Question: is this a good
-   Eimac recommends using a Pi network tuned input.  The Q needs to be 
roughly 2 (Xc1=25 ohms).  .   If you have the room, 6 tubes would be a 
bit more in line with the drive that current radios deliver.  The 811A is 
only good for 65w dissipation. 
Rich...

R. L. Measures, 805-386-3734, AG6K   


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