Transistor amplifier for low level signal

Details Transistor amplifier for low level signal Transistor amplifier for low level signal

1976-08-17

1978-07-25

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330295, H03F 3183, H03F 368

Patent

active

041032454

ABSTRACT:
A transistor amplifier circuitry for low level signal which employs, as the amplifying element of at least its input state circuit, a transistor having a low input resistance. Thus, this transistor amplifier circuitry has a true (not apparent) input resistance sufficiently lower than the impedance of a signal source which may be connected to the transistor amplifier circuitry. Therefore, this transistor amplifier circuitry for low level signal is capable of amplifying, with a high S/N ratio, the signal from the signal source of a low impedance.

REFERENCES:
patent: 2695930 (1954-11-01), Wallace
patent: 2882353 (1959-04-01), Freedman
patent: 3172050 (1965-03-01), Ingle
patent: 3375455 (1968-03-01), Mutta
patent: 3501712 (1970-03-01), Webb
Nelson, "Stabilization of Parallel Transistor Amplifiers" Proceedings of the IEEE, Jan. 1972, p. 140.

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