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.

Sound Effects Generator (CB25050E)
Found in the June 1987 issue of Radio Electronics magazine, this circuit uses well-known CMOS...
High sensitivity receiver for fiber optics (CB9734E)
This Low Speed circuit was found in an American documentation from the 1980s. The integrated...
Aviation Band Receiver (CB26085E)
This circuit was found in the January 1999 issue of Electronics Now magazine. The circuit uses an...