100 Hz Second Order High Pass Filter (CB25815E)

This filter with the 741 op amp was found in the February 1995 Electronics Now magazine. The power supply must be dual.

High Impedance Differential Amplifier LM158 (CB4479E)
Three LM158, LM258, LM358, or LM2904 operational amplifiers are used in this instrumentation amplifier....
ooooooo/ 1 kHz Sine Oscillator (CB4614E)
The circuit shown in the figure consists of a phase shift oscillator and its components have been...
Noise Transmitter CIR6169S (CB4343E)
We found this circuit in a 1989 publication. Its purpose is to produce noise in the VHF or UHF...