GEVV Archive

Very simple mixer circuit bc457 3 of passive elements (resistors, capacitors) consists of four channels have input dc voltage between 9 … 16 works with a 9 volt battery can..

Prepare a musician playing a guitar preamp tone control circuit “gain, deep, press, bass, treble, medium” and make controls debra opamf TL072 JFET transistors on the board. Supply voltage 12..

A useful test development circuit for the PIC18F2550 popular in the PIC18 Series. Lcd and Glcd tests can be done. There are 6 channels 10 adc. There is a usb..

DC-DC converter circuits operating frequency of 40Khz input voltage output voltage of 24 volts to 12 volts and 1.5 amps of power efficiency of 90% and max 10 mV ripple..

It is a very detailed project, the amplifier circuit is collected in layers. Output power mosfets, 4 IRFP240 and IRFP9240 supply stages, separate speaker protection stage, especially the supply circuit..

Line follower robots are still popular. Finally, someone did something different on the line follower robot and shared the source code and the project. The robot has a program written..

I have seen oscilloscope circuits working with a simple circuit over the sound card in many places, this circuit works over the lpt parallel port, the circuit consists of a..

Voltage Regulator Calculator program free electron calculator.. Easily available in the market now has become a classic for the positive regulator integrates a handy calculation, each integrated design program is..

Nokia3510i (Epson S1D15G14) PIC16f628 interface written in Hi-tech C Epson S1D15G14 Nokia 3510 uses integrated graphics LCDs prepared for use in a circuit design software Hi-tech C and the prepared..

The melody circuit is very simple, the controller 16f84 can be used in different series, and the music chart can be useful for creating different melodies. A good example for..