Obviously it is necessary to have a printed circuit board (PCB) before constructing any of the projects described in this book, and building your own printed circuit board is a […]
Burp Sound Simulator Circuit
Originally the burp sound simulator circuit was built as quick lash up but because it was so popular, especially with children, it is still in everyday use. Exactly what it […]
Simple DC Bulb Flasher Circuit
This simple DC bulb flasher circuit has a number of uses in many fields. It is common knowledge that flashing lights are far more noticeable than those that simply remain […]
Simple Transistor Thermometer Circuit
This simple electronic transistor thermometer circuit can be used for measuring the temperature of the surrounding effectively using minimum number of components. Introduction All semiconductor materials are heat sensitive, some […]
Simple Melody Tone Generator Circuit
This particular melody generator is founded on an integrated CMOS Schmitt Trigger reference circuit 4093. It could be utilized in alarms, doors and cars (as an example when driving a […]
Easy 1.5V to 12V/24V Converter Circuits
This circuit is basically a step-up DC-DC converter, which permits to acquire 15 volts of output originating from an ordinary 1.5 volt (B1) battery without necessitating the use transformers or […]