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Before its move offshore, I was lucky enough to be involved in developing the avionics system for the Flightship Ground Effect FS8 craft (se...

This is a classic example of a regulated DC power supply that produces both a positive 15v and a negative 15v from a 20vac wall adapter.

Here is a solar charger circuit that is used to charge Lead Acid or Ni-Cd batteries using  the solar energy power. The circuit harvests sola...

    300w Sub-woofer Power Amplifier - High power amps are not too common as projects, since they are by their nature normally difficult to b...

The subwoofer is a subwoofer or a speaker to reproduce low frequencies, devotee of 20 Hz to 150 Hz electronic circuit diagram below shows th...

A very simple antenna amplifier electronic circuit project can be designed using this circuit diagram.This antenna amplifier electronic circ...

A 4-Digit Keypad Controller Switch Circuit This is a universal version of the Four-Digit Alarm Keypad . I have modified the design to free u...