Balanced low impedance differential input line preamplifier

Details Balanced low impedance differential input line preamplifier Balanced low impedance differential input line preamplifier

1976-08-02

1977-12-27

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330311, H03F 345

Patent

active

040657248

ABSTRACT:
A balanced low impedance differential input line preamplifier comprising a differential amplifier and a pair of high gain common base input stages. The input signal is directly applied to the emitters of the common base input stages and the collectors of the common base input stages are each connected to one input of the differential amplifier. Capacitors are used to DC decouple the common base input stages to the differential amplifier.

REFERENCES:
patent: 3541465 (1970-11-01), Nagata et al.
patent: 3624533 (1971-11-01), Schiff
patent: 3760194 (1973-09-01), Lutz et al.
patent: 3895307 (1975-07-01), Furuhashi

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