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.

PA7601 amplifier (CB7115E)
This circuit with the PA7601 was found in a 1967 Philco-Ford documentation. The circuit has a pass...
10 to 150 kHz Crystal Oscillator (CB6183E)
This circuit is from a 60's documentation. The capacitance C1 can be between 20 pF and 0.01 uF...
Voltage Regulator 1.2 to 20 V (CB876E)
This is a single IC voltage regulator that can acts in the range from 1.2 to 20 V. Output currewnt is up to...