This simple circuit allows you to control remote control servos that operate with pulses. The circuit is powered by 5 V and has a central position adjustment of the servo.
This simple circuit to monitor the frequency of the power grid uses an analog indicator. The...
We found this circuit in a 1997 documentation. It can drive sets of LEDs or lamps through SCRs in...
This timer circuit uses a unijunction programmable transistor. The time is given by the capacitor and...