Joule Thief pictorial diagram circuit

Twelve LEDs can be arranged in a circle to represent the twelve hours of a clock face, while an additional twelve LEDs can be arranged in an outer circle to indicate five-minute intervals within the hour. Four additional LEDs are...

Seven blinker circuits

The circuit features a self-excited multivibrator composed of transistors VTi and VTZ. It includes an adjustment potentiometer RP and two RC networks that influence the transistors' parameters, specifically the timing for light activation and deactivation. The described multivibrator circuit utilizes two...

Search Light Signal

This circuit controls a searchlight-type signal head and produces solid red, yellow, or green indications. The signals can be connected for normal or approach-type lighting of the green signal. The circuit utilizes an LM556 dual timer IC in a complementary...

Fading LedsCircuit

This circuit operates two LED strips in a pulsing mode, where one LED strip transitions from an off state to gradually lighting up and then dimming, while the other LED strip performs the opposite action. Each strip can consist of...

LED flasher with two transistors

This circuit will flash a bright LED 5000mcd as an intention getting device or fake car alarm. More: Component values are not critical and different transistors may be used. This circuit functions as a visual alert system by utilizing a high-brightness...

Wilf Rigter`s SIMD1 V2

In the never-ending quest for simplicity, even one extra diode is a price I loathe to pay. To avoid using extra components, it struck me that the two diodes in SIMD1 V1 were connected like the two junctions in one...

LED-Microscope

This instruction outlines the process of converting a standard microscope that uses a light bulb to LED illumination. A mobile phone charger can be utilized as the power supply due to the significantly lower power consumption of LEDs. This eliminates...

Alternating current voltage amplifier transistor

An alternating current voltage amplifier transistor AC path is described. In AC analysis, the internal resistance of the AC supply voltage source is low, which corresponds to a short circuit signal. Consequently, the alternating voltage terminal Vcc is considered to...

joule thief circuit power a white blue led from a 1 5v battery

This circuit is commonly referred to as a Joule Thief, and it has been frequently encountered in various electronics videos on YouTube. The Joule Thief is a simple, low-cost circuit designed to extract energy from a single-cell battery, particularly when the...