Searchlight circuit | Next Electronics

It is widely believed that light can be beneficial for human skin and mental well-being. Light at specific wavelengths may also help alleviate depression and allergies. Numerous products are available on the market, priced from a few tens of pounds...

simple current controlled led tube

The circuit of a current-controlled LED tube light employs high-voltage transistors to implement the necessary current control operation based on a fundamental principle. A resistor (R2) is utilized to convert the increasing current into a voltage across itself. This voltage...

LED Stroboscope with EG1951-ND

The rotary switch is available for $5.00USD as of 2003 from DigiKey under part number EG1951-ND or EG1952-ND. It is a real pain to operate this circuit without a proper switch. You can put multiple 4017 ring counters in series...

LED STEREO SOUND LEVEL INDICATOR

LED stereo sound level indicator for audio amplifier. Many circuits can be designed as level indicators by using a comparator IC or transistors, but... The LED stereo sound level indicator serves as a visual representation of the audio signal levels in...

led sign

This sign design does not utilize a microprocessor. Instead, it employs an EPROM and multiple counters. Similar to most electronic signs, the LEDs are arranged in a matrix and are stroboscopically activated at a high frequency to create the illusion...

Traffic Light Project

This project operates red, amber, and green LEDs in the correct sequence for a single UK traffic light. The duration of the complete sequence—red, red & amber, green, amber—can be adjusted from approximately 7 seconds to about 2.5 minutes by...

Six LED Stereo VU Display

The following circuit is a six LED stereo VU display diagram that is constructed using the Dot/Bar Display Driver IC LM3915. This VU display should be connected before the amplifier module circuit. It can be connected at the pre-amp output,...

Two-Position Dimmer

This simple dimmer consists of only two components and can be easily integrated into a mains switch. It is essential to first switch off the associated branch circuit in the fuse box, as mains voltage poses a danger. The circuit...

Delayed ON LED

This is a simple circuit where an LED turns on only after a predetermined time once the power supply is activated. Initially, when the power supply is turned on, the transistor remains off. The capacitor charges through the preset resistor...