Amplifiers – Modulator-demodulator-type amplifier
Patent
1976-02-17
1977-01-18
Mullins, James B.
Amplifiers
Modulator-demodulator-type amplifier
330 15, 330 17, 330 30D, H03F 304
Patent
active
040042405
ABSTRACT:
Phase-splitter circuits making use of the properties of "long-tailed pair" configurations. Each such pair comprises first and second transistors connected to one another at their emitter electrodes and exhibiting an input impedance between their respective base electrodes. In the present circuits, a pair is driven by a signal source having relatively high source impedance between the base electrodes of the transistors.
REFERENCES:
patent: 3249897 (1966-05-01), Trilling
patent: 3304512 (1967-02-01), McMillan
patent: 3517270 (1970-06-01), Dilley
patent: 3530391 (1970-09-01), Goordman
patent: 3821656 (1974-06-01), Takeda
Christoffersen H.
Cohen S.
Limberg A. L.
Mullins James B.
RCA Corporation
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