2008

Computerised Universal Timer

This simple and flexible timer is more accurate than the real-time clock of the computer used for the purpose. It can be used in laboratorie...

Six timing positions suited to different skin types Timing affected by sunlight intensity Parts: R1 47K ...

A magnetic field detector is a sensitive indicator of a moving or dynamic ac field. This detector might be of interest if you are concer...

By Jochtorius Mangkasa Wednesday, October 8, 2008

A small circuit that can find a lot applications of measurement time. She has the possibility us inform with sound signal from the BZ1. At t...

One yet circuit with the known LM3915. It does not differ in a lot of points from other applications with same IC. The circuit accosted in t...

The circuit is placed parallel with the exit of power amplifier and us gives the level of signal ,from output. Changing resistance R1, in th...

By Jochtorius Mangkasa Thursday, September 18, 2008

The electroscope pictured in Fig. 1 can be used to display static energy charges from sources such as TV sets, electrostatic generators, car...

The static-electricity detector shown in Fig. 1 is a simple tester designed to detect nearby static-electricity fields. You can easily demon...

A touch switch is a useful circuit that can be used to detect humans or protect small objects, such as antiques. It can be used to turn on a...

"This simple-to-build, yet effective circuit can help you search out and remove electronic eavesdropping devices." by Vincent Voll...

By Jochtorius Mangkasa Saturday, March 29, 2008

An application, which is considered, of very good quality sound since the entrance transistors are working at Class A. The quality of sound...

Published & Translated with permission of Jan Hamer The Netherlands. Good care given to your NiCad batteries will ensure a long life....