Simple Overload protection circuits
This is overload protection for transformers and load, is simple circuit cut off-on by relay. And so fast switch witch SCR driver. can set sensitive by VR1 Read more
SCR DC motor speed control circuit using IC-CMOS
This is speed motor controller circuit of 12V DC motor. as SCR DC motor speed control circuit using IC-4081 CMOS. You can adjust the speed of rotation […] Read more
Simple AM receiver circuit with earphone
This am radio receiver circuit with earphone is a saving version that use a few parts, cheap , easy to build and suitable to be assembled to study,3V batt. Read more
5 DC/AC Blown Fuse indicator circuit with LED Display
This is Blown Fuse indicator circuit by LED Display. A Fuse be the equipment protects that use often most. Because of cheapness can use protect electronics Read more
Sine wave oscillator low frequency-constant amplitude
SEE! Simple Sine wave oscillator low frequency. Without thermistor and Incandescent lamp so very linear in transistor and zener diode circuit. Read more