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Flashing LEDs Electronic Kit

Flashing LEDs Electronic Kit– ApogeeKits created the Flashing LED’s electronic kit AMK102B as an entry level introduction to electronic kit building. This

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World of Heathkit do-it-yourself electronics

World of Heathkit do-it-yourself electronicsAll of man’s progress has stemmed from ideas, ideas held by men and women who pioneer new concepts.

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LED Blitzer is a LED Blinker

LED Blitzer is a LED BlinkerThis strange circuit was in Openclipart i am not sure if it will work. Later i found

electrical

Electrical Symbols that you should Know

Found these in openclipart and wikipedia, A collection of basic electrical symbols you ought to know. You could use these symbols to

Electronic Circuits

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DMM range and AC-DC mode Logic

This is the third circuit that you will need to build a Simple Benchtop DMM with no Microcontroller. Here the U1D and

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Inverting Amplifier – Op-Amp Circuits

Input Impedance of this module is Ri as pin 2 is at virtual ground, the opamp with feedback tries to maintain pin

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Power supply with battery backup – DMM

This is a simple charger circuit which will work for a light load like a DMM, the Battery can be a sealed

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Single Polarity Power Supply

This circuit uses a PNP Power Transistor TIP2955, you can use any other according to your current and voltage requirement. Look at

How What Why

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Digital Programmable Gain Amplifier

I read your post which is about, Digital gain control of Op-amp.  I have some questions to ask, if possible.  Please reply

USB-RS-232

Isolated Full-duplex Serial Interface

I would like to build Optoisolated RS232 interface. I’vesearched a little bit, and I came across your design: RS232 with Opto-Isolation However

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Winding Insulation Resistance Measurement

I am working in power plant. we have a problem on one of gas generator. the problem is that low winding insulation

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Power Oscillator Circuit Design

I am trying to find a circuit diagram for a long time, which will give me the o/p Characteristics as 12V, 0.5A

Olden Circuits

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Archer Project Board Power Supply

This board provides 5 volt or 13.8 volt power. may be built up as a 5 v/13.8 v dual power supply. This

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Level Meter Circuits SPM-3 WG

Here are three circuits from the manual. The design is entirely on discrete devices like transistors, diodes and zeners. Studying these designs

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Diode Reverse Bias Leakage Tester

This is a Test arrangement for Leakage Testing of Diodes on Reverse Bias. The leakage current indicates the ability of the diode

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Voltage Doublers and Multipliers

Voltage multipliers are used to obtain low current high voltage, from an existing AC Source. Step up transformers can be used, but