High Voltage Meter or Probe Design

Common voltmeters, digital or analog, usually range to some hundred volts maximum. Higher voltages not only cannot be indicated, but will al...

Rangkaian Transistor Tester

The circuit shown below is a simple circuit transistor tester. In some digital and analog avometer now mostly been contained this feature, b...

Rangkaian Regulator Variable Sederhana

Regulator Variable Sederhana A simple but less efficient method of controlling a DC voltage is to use a voltage divider and transistor emitt...

Simple switch-Off Time Delay Circuit

Designing a switch off delay circuit is quite simple and will cost you no more than $5 to make. All parts can be picked up from Radio Shack ...

Simple Switch On Time Delay Circuit

This Switch On Time Delay circuit has been designed to create a lamp switch operated electronically with an option of setting a delay in th...

9 Second Countdown Power-On Relay With 7 segment Display

9 Second Countdown Power-On Relay Circuit This circuit provides a 9 second delay using a 7 segment display. When the switch is closed, the C...

Driver Relay Menggunkan Transistor

Basic Transistor relay driver Bipolar transistor is a component that works based on the presence or absence of flow in the foot triggers the...