Advertisement
Black Light – Circuit Schematic
Black Light
...
The flashing Heart – Circuit Schematic
The flashing Heart
...
RX-8 LED – Circuit Schematic
RX-8 LED
I recreated your circuit and it works if I do not ground the line that is connected to. 1 uF of the "2" of the running lights` lm7812; connected to the. 33uF of...
LED DRIVER – Circuit Schematic
LED DRIVER
With an an input sinewave on the left amplifier base, here`s what happens: The collector output rises above or falls below 6. 6 volts. Of course, the amplifier ...
White LED Array Lamp – Circuit Schematic
White LED Array Lamp
To make a battery operated LED lamp, it may better to use a cluster of low power discrete LED array rather than a single high power LED. The light produced will...
Art – Circuit Schematic
Art
A 3-dimensional LED cube, which I can program, to create Art. No more "Doug Stick Figures", but something really cool. Follow along as I create Art. I looked th...
Buck-Based LED Drivers – Circuit Schematic
Buck-Based LED Drivers
The first switching LED driver that we will study is the buck converter. The buck converter is the simplest of the switching drivers, and is a step-down convert...
Simple applications of neon glow lamps – Circuit Schematic
Simple applications of neon glow lamps
To obtain such a monitor it`s enough to connect a resistor in series with the bulb and connect at a main outlet. The resistance of that resistor may vary on the...
Driving a fluorescent tube – Circuit Schematic
Driving a fluorescent tube
Even if a fluorescent tube it`s not a neon glow lamp and this page it`s not maybe at the right place, this circuit is very interesting because it uses an odd wa...
Fun with Geissler tubes – Circuit Schematic
Fun with Geissler tubes
A box full of Geissler tubes and a Ruhmkorff coil. He said his grandfather built the tubes by blowing the glass around 1900, more than one century ago! He wante...
Nixie clock I Vintage electronics – Circuit Schematic
Nixie clock I Vintage electronics
A clock using numeric neon lamps, also known as nixies. These display devices were common around the sixties and seventies and their use fell off after the inve...
Prototyping of White LED Drivers – Circuit Schematic
Prototyping of White LED Drivers
It lights on the high-brightness LED even at 0. 8V if a battery can feed the circuit 93mA at 0. 8V. The step-up efficiency from 0. 8V to 1. 5V is 75% in average...
3-6V Xenon Strobe Light – Circuit Schematic
3-6V Xenon Strobe Light
This circuit used to come as a kit from a surplus supplier, but probably isn`t available anymore. It shows a few novel concepts such as using a 555 as a pulse w...
14 Watt Compact Fluorescent Electronic Ballast – Circuit Schematic
14 Watt Compact Fluorescent Electronic Ballast
This circuit came from a 14 Watt Commercial Electric spiral bulb from Home Depot. In fact, I drew it in that way because it was layed out very well, so much cre...
Triple Stroboscope Circuit – Circuit Schematic
Triple Stroboscope Circuit
This circuit enables observation of movement between other stroboscopes. Generation of rectangular signal is based on NE555. This circuit requires a low power s...
TRIAC Light Dimmer Circuit – Circuit Schematic
TRIAC Light Dimmer Circuit
This little circuit can be used to dim lights up to about 350 watts. It uses a simple, standard TRIAC circuit that, in my expirience, generates very little heat...
230V Blinking LED – Circuit Schematic
230V Blinking LED
A pulsating light for a certain signaling. Voltage was 230V. So I decided to make a simple circuit, consisted of a LED diode, two capacitors, two resistors, a d...
28 LED Clock Timer – Circuit Schematic
28 LED Clock Timer
12 LEDs can be arranged in a circle to represent the 12 hours of a clock face and an additional 12 LEDs can be arranged in an outer circle to indicate 5 minute ...
LED Chaser – Circuit Schematic
LED Chaser
...
LEDs or Lamps Sequencer – Circuit Schematic
LEDs or Lamps Sequencer
The purpose of this circuit was to create a ring in which LEDs or Lamps illuminate sequentially. Its main feature is a high versatility: you can build a loop co...