Voltage Follower TL081 (CB15308E)

This conventional circuit is from Motorola's 1993 Linear Interface ICs. The power source must be symmetrical.

Telephone monitor (CB10146E)
This circuit makes use of an optical coupler to isolate the telephone line. The circuit is from...
Astable Using Transistors (CB924E)
This circuit was found in na old latin american magazine. The circuit uses two germanium...
Opto-Coupler Tester (NI0023E)
A complete test for opto-couplers can be made using the circuit Bellow. The function generator...