Self-biasing JFET circuit (CB25563E)

This JFET amplification stage was found in the April 1993 issue of Electronics Now. The input impedance is 10 Megohms.

Universal Preamplifier for Microphone (CB960E)
This circuit, from a former publication of 1968 was originally designed for germanium transistors, but with the...
Eighth-Order Filter (CB6741E)
This low pass filter has attenuation of 5.5 dB and the frequencies depend on the values of the...
Complementary Amplifier (MSB042E)
This two-transistor output stage source currents up to 100 mA to a load using the 2N3906, but can...