555 timer IC Based Simple Servo ControllerServos became valuable products for any variety of plans, like robotics, automation or only remotely controlling some thing, for example model vehicle steering. They're reasonably low-priced and also simple to have hold of, however controlling them can be a little challenging while they requrie specific moment to control the output to advance into a
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6 Line Digital Wireless Systems XDS-PLUS
6 Line Digital Wireless Systems XDS-PLUSThe XDS-PLUS is a asperous agenda apparatus wireless arrangement antic abounding appearance of the XDR Series arranged into a metal anatomy stompbox receiver. The result: continued abundance acknowledgment and continued operating ambit that alone a Line 6 can accord you. The XDS-PLUS appearance companderless technology and bifold agenda manual for the
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Zin Ultra-High Gain AC Amplifier Unity
This ambit is a alternation of Zin Ultra-High Gain AC Amplifier Unity. Nothing larboard to adventitious in abbreviation ascribe capacitance. The 2N4416, which has a low capacitance in the aboriginal place, operating as a antecedent addict with aboideau bent resistor is switched on and drain. Each ascribe capacitance you get with this ambit because of poor blueprint techniques.
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Stereo STK013 audio amplifier circuit
On the amplifier circuit with ic pieces, identical to my previous post. But in the above circuit, 2 inputs and 2 outputs, or a stereo amplifier has called. This edition of the RF amplifier, 2 x 18 w and impedance 8 stress that it takes 35-38 Volt.Component list:ResistanceR1 = 390 KR2 = 390 KR3 = 220 KR4 = 220 KR5 220 K =R6 = 220 KR7 = 100RR8 = 1RR9 = 9.1 KR10 = 9.1 KR11 = 1RCapacitorC1 = 10uFC2 =
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Simple Inverter circuit with IC556 timer chip
This circuit is low power inverter , in this circuit only save a few components, about 9 parts. Voltage input from 10 volt to 16 volt DC into 60-Hz. And then voltage will be raised to about 115 V with power 25 W. The first section of IC 556 timer chip is wire as an astable oscilator with R2 and C1 setting the frequncy. The output is available at IC 556 pin 5. The second section is wired as a
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Simple power saver circuit
This circuit is used to save electricity in our homes to avoid spending too much . How it works ? This circuit of works to filter the AC voltage , and reduce the magnitude of the cosine curve AC current that will be read on the instrument KWH meters. KWH meters will work if there is a load wire passing through a coil of wire sensors to measure the AC current is passed, if the current through a
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12 Volt car Battery Monitor Circuit
12 Volt car Battery Monitor CircuitThis circuit can be used to monitor the voltage level of a car battery. When the battery voltage is 11.5V or less the transistor Q1 is on and D1 glowing.When LED battery voltage is between 11.5 to 13.5 V, the transistor Q2 is on and the glowing LED D2 .When the battery voltage is above 13.5 V, the transistor Q3 is on and the LED D3 will be bright. The 12 volt
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2 Watt Switching Power Supply
2 Watt Switching Power Supply SchematicIn this small 2 Watt Switching Power Supply, a Schmitt activate oscillator is acclimated to drive a switching transistor that food accepted to a baby inductor. Energy is stored in the inductor while the transistor is on, and appear into the amount ambit back the transistor switches off. The achievement voltage is abased on the amount attrition and is bound
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230 Volts Flashing Lamps Circuit
This circuit is alleged the 230 volts flashing Lamps. Accessory formed by Q1, Q2 and resistors associated with the SCR trigger. To bland it absolutely all-important to apply awful acute SCRs Gate. If you can not acquisition this accessory can be acclimated instead Triacs. In this case, the ambit additionally operates with a almost adult device. A recommended Triac blazon all-over is TIC206M (
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7 segment rolling display using PC Circuit Diagram
7 segment rolling display using PC Circuit Diagram It is actual absorbing and acceptable to be able to ascendancy aggregate while sitting at your PC terminal. Here, a simple accouterments ambit and software is acclimated to interface a 7-segment based rolling display. The printer anchorage of a PC provides a set of credibility with some acting as ascribe curve and some others as achievement
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8 Intercom line using 89 c 51
This project is intended to make the intercom system of low cost 8 lines that can interact with this hardware.Main Board:On this card there are 89 c 51 microcontroller is used. Micro controller is the MT8870 controller and analog DTMF encoder switch MT8816.SLIC Plate:On this card, there is a constant current source is used to activate the phone. The LM339 is used to detect out-of-hand and the
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80W Broadcast FM Stereo Transmitter
80W Broadcast FM Stereo Transmitter SchematicThe two single-ended line level audio signals enter through feedthrough capacitors, and are greeted by a low pass LC filter to get rid of any RF that might be on them. In each channel there is a buffer stage, and then a combination of pre-emphasis and soft-limiting step. The advantage of limiting and pre-emphasis in one step is to avoid heavy
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300W RF Power Amplifier Circuit
300W RF Power Amplifier CircuitHere you got it! 300 W rf authentic ability for fm transmission. 300 W radio ability amplifier for accomplished 88 – 108 MHz !!! This fm amplifier has 2 TP9383 abundant to bear up to 300W.
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20W RF FM amplifier circuit diagram
20W RF FM amplifier circuit diagramThis Fm rf ability amplifier has 2 transistors from Philips : BLV 10 and BLW 87. The 2 rf transistors assignment in chic C and this fm amplifier has a absolute accretion of 21dB ( 100 X ) and ability 55 – 65%.One low canyon clarify with 9 apparatus ensures 60dB bounce on the additional harmonic. There is no charge for action to awning the accomplished 88 – 108
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Amplifier Circuit Output Relay Delay Audio
Amplifier Circuit Output Relay Delay AudioThis is a simple circuit which I built to one of my audio amplifier projects to control the speaker output relay. The purpose of this circuit is to control the relay which turns on the speaker output relay in the audio amplifier. The idea of the circuit is wait around 5 seconds ofter the power up until the spakers are switched to the amplfier output to
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22 Watt Car Subwoofer Amplifier
Este circuito simples do subwoofer é projetado para ser conectado a um amplificador estéreo carro existente, acrescentando que muitas vezes exigem extra "soco" de música por conduzir um subwoofer. Como as muito baixas freqüências são omnidirecionais, um único amplificador é necessário promover o alto-falante dedicado.O amplificador de potência usando um Philips IC BTL TDA1516BQ exigindo um número
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1 Watt Four Stage FM Transmitter
1 Watt Four Stage FM TransmitterThis FM transmitter circuit uses four radio abundance stages: a VHF oscillator congenital about transistor BF494 (T1), a preamplifier congenital about transistor BF200 (T2), a disciplinarian congenital about transistor 2N2219 (T3) and a ability amplifier congenital about transistor 2N3866 (T4). A condenser microphone is affiliated at the ascribe of the oscillator.
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Water Sensor Alarm Circuit using IC M3482
This is a simple musical alarm circuit that produces a musical tone when water or some conducting liquid comes in contact with the 2 sensor wires provided. The circuit relies on four transistors and one melody generator IC M 3482.When water comes in contact with the sensors wires A & B, the bottom of Q1 gets connected with the negative and it conducts. This makes Q2 and Q3 ON. When Q3 is ON the
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TL072 Car Subwoofer Filter Circuit
Here is the circuit diagram of an easy subwoofer filter that can be operated from a 12V DC supply. Such a circuit is incredibly helpful in automobile subwoofer applications. The circuit is nothing however a low pass filter whose pass frequency can be adjusted between 60 to 160 Hz.The circuit is designed based on the TL072 dual BIFET opamp IC. Out of the two opamps inside the chip, IC1A is wired
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Audio amplifier MosFet 18W-30W
This project was a kind of challenge: design an audio amplifier capable of delivering a decent power output with a minimum parts count, without sacrificing quality. The section of the power amplifier employs only three transistors and a handful of resistors and capacitors in a configuration of shunt feedback but can deliver more than 18W in 8 ohms with < 0.08% THD @ 1 kHz at the beginning of the
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1 Watt Portable FM Transmitter
This Simple Portable FM transmitter includes a limiter, a microphone amplifier and a PLL digital tuning. All the components are placed on one circuit board. The RF power is switchable between 1 W (HI) and 0,2 W (LO).The schematic diagram is split into 3 parts: RF part (numbered from 1), PLL (numbered from 30) and audio part (numbered from 50). Connect a 6 V / 0,1 A bulb to the output and set the
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500 Watt Power Inverter 12VDC to 220VAC
The circuit of 500 Watt Inverter 12VDC to 220VAC is formed using a transistor. central element of this inverter circuit is a configuration of 2 pieces of transistors Q1 and Q2 that kind a circuit of Flip-Flop. The output of the flip-flop Q1 and Q2 then in severance for every pulse to complement each other using a compiled circuit by Q3 and this autumn. Output which complement each other is then
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6V to 12V DC Converter Circuit
6V to 12V DC Converter CircuitThis inverter ambit can accommodate up to 800mA of 12V ability from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The ambit is simple, about 75% able and absolutely useful. By alteration aloof a few components, you can additionally adapt it for altered voltages.Parts Part Total Qty. Description Substitutions R1, R4 2 2.2K 1
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NE 555 circuit water level alarm
Here is a simple water-level alarm that will produce an audible alarm when the water level reaches a preset level.The circuit can be powered from a 3V battery and is very useful to use.The circuit is based in an astable multivibrator active on IC1 (NE 555). The abundance of the astable multivibrator today will depend on capacitor C1, resistors R1, R2 and friction in addition to probes & b. When
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1.5V Battery operated FM Transmitter
1.5V Battery operated FM TransmitterThis accomplishing is acclimatized to rebroadcast the achievement of a CD player, television receiver, or radio receiver. I use it so that I can move about the abode and accept to my admired programs after advancing others. Within and the house, I acquisition that I can get 10 to 20 meters abroad from the transmitter with the baby abridged FM receiver I
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20 VAC Lamp Dimmer Schematic
20 VAC Lamp Dimmer SchematicThe abounding beachcomber appearance ascendancy circuit beneath was activate in a RCA Power circuits book from 1969. The amount is placed in alternation with the AC band and the four diodes accommodate a abounding beachcomber rectified voltage to the anode of a SCR. Two baby arresting transistors are affiliated in a about-face agreement so that back the voltage on the
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Audio Amplifier using Squelsh-Control
Audio Amplifier using Squelsh-ControlThe Agenda volumecontrol assemblage (DS1869) can accept the ascribe arresting from two ways. One is the absolute ascribe band the added is through a lowpass filter. I accept fabricated this clarify actual sharp, so if there is any ancillary nois from synthesizers (12.5kHz wine) It will be filtered away, se amount below. I accept acclimated a simple two-ways
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6 Band Graphic Equaliser Using 741 Op-Amp
6 Band Graphic Equaliser Using 741 Op-AmpThis circuit is 6-band graphic equalizer, you can adjust the sound of low, medium and higher than the IC op amp circuit used 741. With this circuit you can control and mix of frequencies and tones to your liking.In essence, the circuit comprises an IC 741, whose gain is determined by several freguencies adjustment potentiometer.Audiblefrequency spectrum
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M 3482 Alarm Water Sensor Circuit
This is an easy musical alarm circuit that produces a musical tone when water or some conducting liquid comes in contact with the two sensor wires provided. The circuit is based on four transistors and one melody generator IC (M 3482).When water comes in contact with the sensors wires A & B, the base of Q1 gets connected with the negative and it conducts. This makes Q2 and Q3 ON. When Q3 is ON
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LM3876 Audio Power Amplifier 56W
LM3876 Audio Power Amplifier 56WThe LM3876 is a high performance amplifier audio power capable of delivering 56W of continuous average power to a load of 8 to 0.1% THD + N 20 Hz-20 kHz.The performance of the LM3876, utilizing its Self Peak instantaneous thermal protection circuitry, places it in a class above discrete and hybrid amplifiers by providing a yes, dynamically protected area of ??safe
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AN7415 FM stereo Demodulator
The circuit shown below is from a PLL FM stereo demodulator designed depending on the AN7415. C1 is the coupling capacitor input that blocks any DC voltage present on the multiplexed signal input. LED D1 is a LED indicator and R1 is its current limiting resistor. C4 and C5 seem to be decoupling capacitors in DC for the left and right output channels.C2 and C3 to be noise bypass capacitors for the
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100W Subwoofer Amplifier Circuit
This is the circuit diagram of a fully transistorized subwoofer amplifier that can produce full output 100W.There seven including four in the output stage. Transistors Q1 and Q2 form the pre-amplifier. The transistors Q4 to Q7 as the output stage. Since no integrated circuits used in the circuit is very robust and can be easily mounted on a general purpose PCB. Notes. The circuit can be powered
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1000 Volt DC to DC Regulator Circuit
1000 Volt DC to DC Regulator CircuitInput voltage high voltage DC-DC converter 12V AC to 800 mA of current and then converted to DC through a rectifier diode 1A. The output voltage converter circuit can be adjusted in the range 0-1000V DC. This high voltage DC-DC converter uses the transformer as a base and several other active components include 555 timer IC, CMOS IC 4001, IC voltage regulator
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10 Watts Mosfet Audio Amplifier
The diagram shown here is a MOSFET amplifier circuit 10W of sound that only requires a single source. Single railway material rarely used in power amplifiers class-B. However, for low power applications like this is very thin. Actually I have this circuit a old cassette player is still working and republish as it is. The BD512 and BD522 power MOSFETs is obsolete now and you can use any other
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1 kHz sine wave generator
This circuit generates a 1 kHz sine wave, adopting the inverted configuration of Wien bridge (C1-C2-R3 and R4). It has a variable output, low distortion and low output impedance, in order to obtain a good overload capacity. A small incandescent lamp ensures a long-term stable amplitude of output waveform.Notes:The lamp must be a low current (40-12V 50mA or 6V 50mA) in order to obtain good
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200W ATX PC Power Supply uses chip TL494
200W ATX PC Power Supply uses chip TL494This ability accumulation circuit uses chip TL494. Similar ambit is acclimated in the best ability food with achievement ability about 200W.Device use push-pull transistor ambit with adjustment of achievement voltage. Line voltage goes through ascribe clarify circuit (C1, R1, T1, C4, T5) to the arch rectifier. When voltage is switched from 230V to 115V,
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Audio Video Distribution Amplifier circuit
Audio Video Distribution Amplifier circuitWith the amount of equipment in home entertainment facilities today the need to be able to fluctuate the gain of the audio and also video signal is needed. I observed this specific circuit very helpful while used in conjunction with the General Descrambler and also a Stabilizer circuit I built for making duplicates of video tapes. This not just allowed
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Dual Power Supply using LM 320 and LM 340
Number of signs needed and bipolar integrated circuits (double V ± o) supplies. This can be done easily with two three-terminal regulators, as illustrated in Fig. Faced with the CA phase is provided by the transformer secondary and a center tap to ground. The only full-wave bridge converts these into positive and negative voltages (with respect to the center tap to ground). Filtration (to ground
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