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Original Message

RE: Octal base driver for 300b

Posted by PakProtector on August 28, 2020 at 19:22:26:

You can get very large gain from a CCS-ed pentode. And low output Z thanks to the mu-output. Tune the gain with a resistor between plate and ground. Gary Pimm is the first I heard writing of this, and unfortunately I have not spoken to him in forever.

CCS tuned for the idle current and the resistor current.
cheers,
Douglas