Battery-powered Night Lamp. Courtesy light circuit diagram. Brightness Control for small Lamps. Dancing LEDs circuit diagram. Black Light powered by a 6 volt battery. Lightning Activated Camera Shutter Trigger. Sun - Up Alarm that provides an audible alarm when the sun comes up or a dark area is illuminated. Assortment of Siren Circuits. Flashing neon christmas lights. Wireless IR headphone transmitter. Wireless IR headphone receiver. IR illuminator for night-vision tv cameras and scopes.
Infra Red Switch that works with commonly available remote controls. Infrared Remote Control that operates on volts AC. Three channel audio spectrum analyzer. Digital Voltmeter using ICL Beeper to find short circuits. Voltage follower with 1G ohm input resistance based on LM11 opamp. Led display digital Voltmeter using ICL Precision Audio Millivoltmeter. Oscilloscope testing module huntron circuit. Voltage Monitor using UA operational amplifier.
Digital Radar Speedometer. Three-Level Audio Power Indicator. Beat Balance Metal Detector. Coil Coupled Operation Metal Detector. Expanded Scale Battery Volt Meter.
Pulse Reading Logic Probe. Stereo Test Tone Generator. Continuity Tester based on 4 x 2N and 1 x 2N transistors. Audible Logic Probe based on LM operational amplifier.
Single chip digital voltmeter using ICL Latching Continuity Tester to help find intermittent faults, has quite a few innovative features. Linear Resistance Meter. Simple RC car for beginners Android control via Bluetooth. Arduino RC car Android control via Bluetooth.
Lighting control with Android device through Bluetooth. Cellular Phone Jammer. Ver 2 circuit diagram. PCS Phone Jammer circuit diagram. Self-powered Fast Battery-Tester - Tests 1.
Battery Low Voltage Beeper. AA Battery Solar Charger. FM Transmitter using two transistors. Medium range transmitter using pair of 2N transistors. Single transistor FM transmitter. Miniature FM Transmitter. Low Power FM Transmitter. Sensitive FM Transmitter. Cellular Phone calling Detector. Simple Phone Tap circuit diagram. Telephone Hold Button circuit. Telephone recorder to record phone conversations automatically. Phone line indicator. Isolated Telephone Interface. Phone In Use Indicator circuit diagram.
Phone "Hold" With Music. Simple speakerphone. Soft Musical Telephone Ringer. Telephone amplifier. Cut Phone Line Detector. Telephone line monitor. Phone Busy Indicator. Ringing Phone Light Flasher using optocoupler and relay. Build a Tape Linearizer and a Distortion Analyzer. Microphone polarity tester circuit diagran. Audio Spectrum Analyzer and Equalizer Designs.
Heartbeat Sensor Tranduscer. Low Cost Universal Battery Charger. Telephone Circuit: Music On Hold. Loud W Car Alarm Siren. CamTrig - A home-made light-operated camera trigger. A simple home-made light-operated camera trigger. A home-made light-operated camera trigger using the stamp microprocessor. Octave screamer. Atari Punk Console schematics. Build A Roomba Bluetooth Adapter. Chaos generator. Simple test equipment to build. An end-fed antenna, L-match coupler and resistive bridge for HF.
Regenerative receiver for the AM broadcast band using two transistors. Two Valve 40m CW Transmitter. Novel crystal set requires no antenna, earth. A compact L-match ATU for portable use. Converter to yune six metres on your two metre receiver. High quality AM through your FM stereo. Signal Frequency Beat Frequency Oscillator. Dip Oscillator for HF. RF Actuated Keying Monitor. LF to HF Converter. One Valve CW transmitter. Super 80 ultra-simple SSB receiver for 3.
Two Tone Audio Oscillator. Wide-swing Variable Crystal Oscillator. Palm PDA based datalogger. Traffic light controller with output sequencing. Automatic - Railway Grade Crossing Circuit design. Audible Train Approach Warning Circuit. Across The Track Infrared Detectors. Automatic Reversing Circuit for Model Trains. Voltage Comparator Information And Circuits. Rail Crossing Diamond Protection Circuit.
Automatic Railway Grade Crossing Flashers. H Bridge Motor Control Circuits. Incline Railway Control Circuit. LM replacement using discrete components. Model Railroad Odometer Car. Visible and Infrared Light Detectors. Turnout Anti-Derail Protection Circuits. Regulated Power Supply Circuits.
Single Traffic Light Driver Circuit. Basic Solid State Relays. Unipolar and bipolar stepper motor driver circuits using and ULN Various Transistor Throttles Cicuit Schematics. LM Thermostat circuit diagrams. Transformer Secondary Voltage Reduction. CAB Timer Circuits. Train Mounted Camera Battery Charger. Diode Type Constant Lighting Circuits. High Impedance Voltmeter. Incandescent LED Circuit. Model Railroad - Infrared Proximity Switch.
Infrared Receiver Module Schematics. Low Battery Voltage Cutout Circuits. School Bus Signals Circuit. Push Button Motor Control Circuits. Timed DC Throttle. Efficient unipolar stepper motor driver only uses power when it makes a step.
Self made data-logger V2. Photodiode primer and interface circuit diagrams including photovoltaic and photoconductive modes. Passive grid tube based linear amplifier. T-Match ATU antenna tuning unit. Fourth order Butterworth BPF circuit diagram and design notes. Chebyshev low pass filter, rolls of at 30MHz. Multi band SSB transceiver construction project. Receiver building blocks. SSB transceiver for 80M. Simple CW transmitter for 80M. VHF receiver converterer. A Receive Signal Decoder.
Motor speed controllers. Alternative power source for Magellan GPS receivers. PIC16F84 line following robot. Commodore 64 bit parallel port interface with Electronic door codelock PIC16F Automatic door opener with PIC12C Full-duplex doorphone with 3 wires connection.
Infrared circuits for remote control. Serial port controller infrared transmitter PIC16F Dual light timer based on PIC - Automatically turn off the lights after 10 minutes. RSlike multi-drop bus with half duplex serial protocol. Circuit diagram for superregenerative receiver built by GE labs. X10 RF daughter board - receiver circuit diagram. RX MHz superregenerative receiver module circuit diagram. Automicro RX receiver module schematic. Automicro TM02 high power data transmitter module circuit diagram.
RF Audio transmitter circuit diagram that operates in the AM broadcast band. Superregenerative 27MHz receiver. Electronic irrigation controller based on PIC. FM Microphone micro-transmitter that is small and sensitive. Montreal Doppler 3 DF direction finder unit.
Construction details for 30 meter rig with superhet receiver and crystal controlled transmitter. Versatile L tuner for end feed wire antennas that fits in an Altoids tin. Battery voltage monitor using an LM op-amp. Fixed Frequency "Tuner Dipper". A Variable power supply with adjustable current limiting. Collection of quartz crystal ladder filter circuit diagrams. Building a Digital Intervalometer - includes circuit diagram and suggested layout.
Arduino based motion triggered camera using a PIR sensor. Dynamo Current and Voltage Regulator. Spring reverb unit. Incoming call indicator ZIP file. Digital speedometer for cars with 7-segment display of speed. PC serial port parastic mode interface for 1-wire DS18S20 and similar 1-wire temperature sensors. Timer circuit based on a and CMOS chips that can be calibrated using a frequency counter.
Circuit diagram for basic alarm with delayed trigger. General purpose portable DC power supply using rechargeable C cells. PCB board tester and RF detector circuir diagrams. Alarm circuit to remind you to turn off your DMM digital multimeter. Circuit to enable cycling a string of Christmas lights. Sound alarm based on LM opamp and LM amplifier. General purchase audio preamplifier based on pair of 2N transistors.
Audible timer that can be used as a cooking timer for roasting peanuts for example. Wireless alarm FM transmitter module. Switch debouncer circuits including transistor, CMOS logic and a timer based design. Percussion generator circuits. Bench power supply that allows a number of varying output voltages to be preset. Includes PCB layout. Small audio amplifier based on LM Function generator based on timer and three 2N transistors.
Interesesting circuits using diodes ideal for education or introductory courses on electronics. Sequential flashing arrow circuit using a , also includes a PCB layout. Selection of run circuits to experiment with the CMOS decade counter chip. Multi-trace scope display that allows up to 4 channels to be viewed on a single oscilloscope channel. Magentic phono cartridge phono preamp circuit diagram.
Power supply metering circuits for measuring both voltage and current. Cicuit diagram for super long range microphone for use with a shotgun microphone or parabolic dish. Fuse or line monitor that will check the status of up to six fuses including a PCB layout. Select of interesting electronic circuits that require only a single transistor ideal for education. Small selection of useful circuits. Selection of 14 oscillator circuits include sinewave, audio, logic and LED flashers.
Jeopardy game circuit diagram using three CMOS logic chips. Selection of audio preamplifiers including circuits suitable for battery operation. Ericsson phone to PC serial port interface. Network car controller provides functions for remote door locks, headlight reminder, and car finder. Digital bench power supply based on a PIC16F Candle simulator based on a PIC12F microcontroller.
Cat toy using a PIC12F and a small weighted motor to keep your cat amused. Dirt cheap video using a PIC16F microcontroller. Dremel drill speed controller. Talking fish hack using a PIC16F microcontroller.
Furby Resurrection - Project that replaces the electronics in a Furby with new custom electronics. Hexbot robot based on a PIC including source code and circuit diagram. Infrared object detector using a PIC12F microcontroller. Isolated oscilloscope probe. Telephone line simulator ideal for testing phone interface projects.
I am studying electronics circuits just as a side subjects , so I do not know even the abc of circuits. Can you please help me out with a circuit diagram of such, preferably one that does not make use of coils and inductors. Thanks in advance. Your email address will not be published. Use 5-wire 3-wire digital steering gear to control flexible steering, making driving smoother, cornering more stable, and durable.
Cool LED lights, no obstacles for operation at night. The remote control distance is up to meters. Support multiple people to play at the same time without interfering with each other. Wheelbase: 98mm Ground clearance: 3. Battery for car: 7. Alloy chassis structure control simulation, forward and back, left and right turn. The whole car has a rolling bearing, digital servo, four-wheel independent suspension design.
This Vehicles' size is about Four-wheel independent suspension system, a former differential, straight back bridge. Double function, rock climbing and running speed, appearance simulation, suitable for a wide range of people. Wltoys RC Car. Weili This product is a product with different appearance styles under the series. Its internal structure is the same as and K This Weili B2 is a product under the series.
The color is white and black. Its internal structure is the same as and K hammer. The shell is different at the time. This Weili C2 is a product under the series. It has a Bigfoot with V2 Remote Control. So it Suitable for mountain crawling. It is suitable for little kids. This is the Wltoys RC Car. Go forward and back, turn left and right. Its speed is not fast And suits for the Kids. Also, this car has two colors. Its size is very large. Running Speed is very fast. And the price should be negotiable!
And the price should be negotiable. Sales tips For gift promotion,gift-away, for a birthday gift for kids. This product was produced in Popular all over the world. It is fully proportional and can accurately control the steering speed and forward and backward speed of the car.
Wltoys P RC Car. It likes a farmer truck. This RC Car is Unique design and strong power can easily hold up the front wheel and pull a stunt. This RC Car Has a powerful shock absorber system. Fast running, anti-collision, and anti-fall. This is an early product designed by Weili factory.
Popular throughout The design of this product is very classic. Can be changed to a brushless upgrade. Its internal structure is exactly the same as wltoys The exterior shape is different at the time.
So players can choose which style to choose according to your preferences. This car is White Color. Cool appearance and Streamlined shape. Also provide the Upgrade Metal parts,battery,manual, etc. This car is scale. This car is very helpful for improving children's intelligence.
It is also great as a toy gift. Also provide the Upgrade Metal parts, battery, manual for this Car. L is a product produced by the Weili Company in This product was the favorite of all children back then.
All his parts can be disassembled and replaced. You can also upgrade to a brushless version. The corresponding brushless version is L It is the same L series as L L is a product produced by Weili Company in I remembered that there were 2 colors, belonging to the truck series.
It is the best choice for children in the model community. L This car also belongs to the truck series. There are 2 colors, blue and white. The battery of this car is a lithium battery. Full of power. The brushed version of the plug is a JST plug. It can be upgraded to a brushless version.
The battery of the brushless version is a T plug. Also, its price is not expensive. All Vehicles are 2. So you can control it at a large m distance. Boys love it, Strongly Suggest these Cars. These remote control cars are very exquisite and small in shape, which is lovable. It is highly recommended for children to play.. Also, we called it AB Car. This car's motor is a little bigger than the A Truck, so it can run faster than the A Car.
Also, this car can upgrade to Brushless motor Version. It is highly recommended for children to play. This remote control car is a reduced version of The size is very suitable for children to play in. The appearance of the remote control is very cool and the shape is first-class. The feel is very realistic. These 3 remote control cars can be transformed into each other.
You only need to purchase the relevant conversion accessories. This car is the Small-size Racing car. The speed it very fast.
These 2 mini remote control cars P P are bought by many players. Many of them bought and modified. This mini cars has 2 colors, the bule color and Black color. We have the best price and support all drone's parts for you. This drone is 6 Channel. This quadcopter has a Six-channel gyroscope. Stable flight. Flexible steering. This remote control Quadcopter is highly recommended for Hobbies fans to play. Stable as the universal and agile as the single propeller helicopter is Adopt the collective pitch, besides, 6-axis gyroscope attitude mode and 3D mode make the perfect combination.
Its easy operation is gorgeous for the fresh players. Brings you more interesting. Equipped 2. Recoil simulation All of Heng Long's remote-controlled tanks offered in this shop have a recoil simulation.
The tank makes a small sentence to the rear when fireing, this is implemented by a short snap back of the chain drive. Who wants to have his tank model perfectly true to the original can replace the recoil simulation by a real gun barrel-recoil.
This conversion is, however, a bit more expensive since the gun barrel must be replaced. Infrared-Battle-System Modern remote-controlled tanks are partially equipped with the Infrared Battle System for simulating a battle with multiple tanks. The tank sends out completely safe infrared rays.
If a tank is hit this lowers the cannon is put out of action for some time, so unable to maneuver. All Heng Long tanks can be retrofitted with relatively little effort to the infrared system, but the BB shot function is lost. Either or so. Although it is also possible to build a hybrid system infrared and BB , but this larger interventions in remote control and circuits of the tank are necessary. Conversion sets with transmitter and receiver for a tank are available for about 16 euros to buy.
BB-Airsoft shot function All tanks offered in our shop have a shooting function and are therefore no children's toys! The age recommendation of the manufacturer is from 14 years and then only under the supervision of an adult. The 6mm BB plastic projectiles [Airsoft] have a range of about 25 meters.
The firing function can be triggered by means of two switches on the remote control. Please observe the safety instructions of the manufacturer! Ferngesteuerte Panzer mit Schussfunktion. Remote controlled tanks are not toys!
Recommended age: from 14 years and then only under the supervision of adults! Read the operating instructions before commissioning! Terms and Conditions. Right of withdrawal.
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