[AMPS] linear amps

[measures]

>
>> Examples of GG tubes that often need neutralized include the
>> 3CX1200A7 and D7, pairs of 572B's, and (4) 811A's. The reason
>> they need neutralized is the long grid leads and poor
>> cathode/anode shielding inside the tube allows a considerable
>> amount of feedback capacitance from anode to cathode.
>
>The 30L-1 does not have neutralized tubes, so apparently 811A'a do not
>absolutely require it.
>
According to Mr. Rauch, the HV (RF) bypass cap. is there for 120 Hz 
ripple reduction.  

cheers

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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