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 credit should go to Sam Goldwasser. It is a rather interesting oscillator circuit which I will....

The tuned coil L1, has two output tapping for the antenna connection, marked "A" and "B". These are both low-level outputs and you choose which tapping you want to use ( stable low range, or more unstable but higher range). Tap B (2. 5%) takes just a very....

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Arduino sketch and other useful information about driving a brushless DC motor, such as DVD drive spindle motor, using Arduino or another MCU..

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This timer circuit is similar to the 5 to 30 minute timer except that when switch S1 is closed, the on/off actionof the circuit will continue indefinitely until S1 is opened again. A 7555 time and low leakage type capacitor for C1must be used. The 6 way....

This circuit was designed to produce an audible alarm when the mains power is interrupted. Such an alarm is essential for anyone whose livelihood depends....

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The adjustment control for the contrast of an LC-Display is typically a 10-k potentiometer. This works fine, provided that the power supply voltage is constant. If this is not the case (for example, with a battery power supply) then the potentiometer has to....

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In the production of LCD projector, the main factors of the threatening life of LCD screen is the temperature of halogen. The multi-function controller made by this circuit is very effective for the protection of liquid crystal projector. The LCD projector....

The chip in the middle with the tiny bullet holes in it is almost certainly proprietary. At best you can salvage a few parts if your time is worth nothing, but you don`t need to know the circuit for that. Olin Lathrop Apr 9 `13 at 14:24 Just to make sure:....

This rotative speed regulator circuit schematic allows to control the holing speed of your borer or driller machine. This project is based on the fact tha....

IC1 forms a differential amplifier for the electromagnetic pulses generated by the engine sparking-plugs, picked-up by sensor coil L1. IC2A further amplifies the pulses and IC2B to IC2F inverters provide clean pulse squaring. The monostable multivibrator....

A keyboard key figure who work with electrical contact between the surface of the keyboard and the underlying circuit when pressed keytop area, used by some home computers the early 1980s, and has been widely used in consumer electronic devices...

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L1 and L2 were made by wrapping three tight side by side loops around a sharpie marker, I also made L2 by wrapping about 8 inches of 35AWG magnet wire around a ferrite core, careful to make the windings side by side and glued it in place with a hot glue gun,....

I`m trying to use a 74LS259 8 bit addressable latch. I`m trying to get it working without a micro-controller first to ensure that I understanding the wiring 100%...

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The following circuit shows about LM4652 IC For 170 Watt Power Amplifier Circuit. Features:?used in portable HiFi systems such as power ....

The TC4422 chip is in place of the BD140/BD139 totem pole. Unfortunately I do not have a multisim model for this chip so I can add it to the circuit....

This is the diagram od electro-harmonix graphic equalizer. You can specify the number of channels according to your needs. You just need to parallel the components: C1, C2, R1, an om-amp, Potensiometer and a 470 ohm resistor. The frequency to be boost....

This article lists various types of audio amplifier circuits using Mosfet. We have tested all these circuits in our lab and we found all of them performing satisfactorily. The amplifier employs only one transistor and two MOSFETs and few resistors and....

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This circuit shows about LM2576T IC Step-Down Switching Power Supply Circuit Diagram. Features:60V input voltage,  3.3 V/5V/12V/15V output ....

Moisture deposited on a surface bridges across a grid of wires or circuit board traces. A circuit measures the AC ohms resistance through the grid. - Warm wet weather promotes fungus and insect pests of plants. - Quick detection of rain can be used in....

The Fender Bassmanis a legendary guitar amp known to both guitar and bass players. It wasintroduced in 1951, primarilytargeted for bass guitar players andpromoted asa bass ampfor the Fender Precision Bass guitar, the first mass-produced electric bass guitar....

The Testatika design based on the Pidgeon/Wimshurst machine is of course only one type of electrostatic generator to build this system around. Since the early 1900s such power generators have come a long way in sophistication - and in power output - recently....

Telephone Tone Ringer TA31001 The UTC TA31001 is a bipolar integrated circuit designed for telephone bell replacement. It CAN also be used as alarms or other alerting devices. By LianShun Electronics Co. , Ltd ..

The HV732 is a complete, high-speed, high voltage ultra- sound transmitter pulser. This high performance CMOS in- tegrated circuit (IC) is in a single 7x7x0. 9mm 44-lead, multi- die, QFN package. The HV732 CAN deliver up to a ±2A source and sink cur- rent to....