This circuit has its application suggested in an alarm system. The circuit is from an old RCA manual. R1 has 5.6 ohm, R2 22k, R3 2k2. The capacitor is 8 uF.
This interesting comparator circuit was found in an old Motorola documentation. The integrated circuit...
This two-transistor constant current source is from a 1968 documentation. Modern equivalent...
An interesting application that finds applications in industry, especially when fluctuations in...