This circuit uses a JFET at the input to increase the impedance, and is temperature compensated using diodes as sensors. Bandwidth is 20 kHz and transistors are germanium types common at the time of the publication (1968).
This circuit uses a JFET at the input to increase the impedance, and is temperature compensated using diodes as sensors. Bandwidth is 20 kHz and transistors are germanium types common at the time of the publication (1968).
