This general purpose two-transistor complementary configuration was found in the December 1972 issue of Radio Electronics magazine. The power supply is between 6 and 12 V.
This car alarm was obtained in a Signetics documentation from the 1980s. The circuit uses the 555...
The frequency of this circuit can be varied from zero. The circuit uses the CMOS 4046 and was...
This simple binary counter triggers two LEDs according to the number of pulses applied to the...