GEVV Archive

BA1404 Stereo 3V FM Transmitter Circuit

The FM Transmitter circuit built on the BA1404 can work with two 1.5V AA batteries. If desired, a 6 volt dc adapter can be connected. RCA Input sockets have 300-ohm..

Quality Headphone Amplifier with TL072 Op Amp

The circuit is based on the TL072 Op Amp and its output is powered by the bc338 and bc328 transistors. A simple and low cost circuit supply voltage +- 15..

Automatic 12V 24V Solar Panel Charger Circuit

Solar Battery Charger Circuit MOSFET power transistor used in the MTP2955 charge and charge status LEDs can observe with 0:33 in the circuit diagram? TEXT trying to SEA could not..

12V 24V Solar Panel Regulator LCD Display

The Solar Panel Regulator measures the voltage or charging current on your solar cell and cuts off the energy of the panel to stop overcharging. It works with 12V or..

PIC16F88 Tachometer Circuit LED and Display Indicator

LM2940 is used for MC34063 pic 16ff88 for supply voltage 12v dc led supply of tacho meter circuit. Dual Display LED Tachometer A sensitive and accurate tachometer is essential for..

TL494 12V Flourescent Lamp Inverter Circuit L6574 Ballast Driver

Inverter Circuit is based on TL494 pwm control IC. In addition, the inverter circuit is a good source for different projects, including the core and transformer winding information used in..

Simple Symmetric Power Supply Circuit with LM317T LM337T

The power supply circuit has a simple design, but it is a useful circuit that you can use in various circuit tests using 2 LM317T Positive regulators and 2 LM337T..

Speaker Protection and Fan Control Circuit

The speaker protection circuit prevents the speaker from burning as a result of DC voltage output as a result of any malfunction in the amplifier circuit, it also connects the..

Car Speed ​​Alarm Circuit Display Indicator PIC16F84A

There are source codes, schematics and pcb files of the project that used 16f84a microcontroller in the speedless alarm circuit. Speed Alert for Cars Does your license seem a bit..

Two-Channel Dimmer Circuit with PIC16F84A LED Level indicator

PIC16F84 Automatic Dimmer. It is specially designed to drive high power lamps used in stage lighting up to 2400W. Preset brightness levels, dimming rates, flash on and off buttons, etc…