Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 112
e is includedin the circuit between grid and filament. The voltage dropin this resistance due to the filament current flowing throughit gives the grid a sHght negative bias. Amplifiers usuallyoperate better with a slight negative bias, the amount varyingwith the tube, but usually about one volt in… … Fig.. 43.—^Single-stage audio frequency amplifier. /I* S-
Radio
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