Diy note

DIY 15 Note Hand Cranked Music Box Movement with Hole Puncher and 20 Paper Tape Love music boxes but never seem to be able to find the song you really want? Look no further, with this Mechanical Music Box Set,  you can create the music box you've always wanted.The music box is operated by turning the hand crank as the music strip is feed  through the music box. 20 blank music strips are included and a hole punch in order to write your own music in minutes. Description: Name: Music Box Movement Material: Alloy&Plastic Note:15 Create your own musical melody Punch holes in the paper strips provided Play any song you wish How to use:  Write your musical note on the paper strip, and use the puncher to punch the holes. Then put it inside the music box movement and  stir the shaft,then it can make sound. Package Included:   1 * Hand crank music movement 1 * Hole puncher 20 * Blank paper strip

DIY Audio Stereo Power Headphone Amplifier Board Module Kit Standard Type Specification: PCB size: 8.3 x 4.6cm Resistance: 6 ring blister copper Voltage: DC 9-15V Panel thickness: 1.6mm Note: This is a soldering kit, you need to have some knowledge of electronics and ability. We don't offer instructions, please note about this before you order it. Any problems caused by personal reasons, not covered under warranty. Package included: 1 x DIY power amplifier kit

Note: This is a unassembled kit, you need to solder it, please note about this before you order. Product Features: 1. Full screen response, high fidelity unit 2. Large speaker inner cavity volume, bass diaphragm, bass thick, cinema-level enjoyment 3. High woofer speaker cooperating, 360 degree surround sound 4. Two-layer acrylic sheet for improved sealing and shock resistance 5. All screws are fixed, making DIY more convenient 6. With 3.5mm Interface fully compatible Product Parameters: Power supply voltage  USB interface 5V Output power  3W*3 Number of speakers one 3-inch and two 2-inch Audio input  standard 3.5 audio interface Net weight 700g Size 250*100*80(mm) Package Included: 1 x DIY  Speaker Production Kit

DIY Radio 40M CW Shortwave Transmitter Kit Receiver 7.023-7.026MHz Brief introduction: This kit is a classic low-power transceivers. This is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver uses a 9V square battery. The reception is good, highly readable code, is the entry of the most junior amateur radio choice! Technical parameters: Power supply: DC 9V-14V Antenna: 50 ohm, unbalanced Receive quiescent current: 10mA @ 9V Transmit power: 0.8W @ 9V, 1.2W @ 12V Frequency range: launch 7.023MHz, receive 7.023-7.026MHz (7.023MHz crystal) Mode: CW Shell selection and installation: Beautiful metal case not only for item considerably, and can effectively shield nearby interference. There are many optional shell, for example, metal cans, aluminum boxes, medical elongated aluminum box and so on. Select the box in time to pay attention as easy to open, because the battery ran out and need replacing. Recommendations: The confidential achieve better results, set the antenna performance can not be less than the full length of the horizontal half-wave dipole antenna, in conjunction with the use of Simple Barron, antennas should be kept away from sources of interference, such as fluorescent lights, computer monitors, switching power supplies and other equipment as much as possible with the coaxial cable as feeders to reduce possible interference received, as a small selection of the broadcast interference morning or late at night listening to get the best results listen to SSB and CW signals signal. Note: We don't supply any manuals please note about this before you order it. Package included: 1 x Shortwave Transmitter Receiver 7.023-7.026MHz QRP Pixie Kit

Note: 1. This product does not includes housing!! if you need the housing, please purchased separately (Product ID: 1247731). 2. This is a DIY kit, you need to have some knowledge of electronics and ability. 3. Need a lot of soldering, you should have enough patience. 4. 8x8x8 blue lights display version 5. APP function only supports Android system 6. Flie: Click to open Feature: The backplane consists of a circuit board and component parts, which require their own soldering. 512 pcs blue LED lights form a square three-dimensional space. With expand wifi module, cell phone wireless connection the cube, exclusive APP control operation. (Viewing better at night). Specification: Input voltage: 5V Current: 1A-2A (2A effect is better, because the LED driver chip APM4953) Power: 5V phone charger power supply Circuit board material 1.6 mm RF-4 plate PCB board size: 150 x 150mm APP version functions: (support for Android only) 1. Through the audio cable input and output music. 2. Built-in 45 kinds of offline cool animation (power to run the animation) 3. Built-in 15 kinds of offline dynamic audio animation (with music dancing) 4. 3 D8 PC mode (control animation, which can control lights display) 5. 3 D8 PC music mode 6. Infrared remote control (long distance remote control) 7. PWM breathing light mode 8. Boot motherboard test mode 9. 15 level animation speed adjustment 10. Brightness adjustment of 10 level 11. Change word by the phone (32 patterns, 45 letters) 12. Mobile PC After the phone connected to the product wifi, you can use the exclusive APP (light cube APP) software to operate. The wifi module has been carefully PCB design and debugging, straight line transmission distance up to 10-20 meters. Circuit design: IAP12C5A60S2 + 74HC595 + APM4953 + WIFI + Infrared remote control 1. Integrated IAP12C5A60S2 high speed 1T microcontroller 2. 5A high current MOS tube driver chip (to solve the uneven brightness) 3. High speed scanning chip and serial control cascade chip 4. Use WIFI APP Android software control 5. Infrared remote control (Easy to control) Package Includes: 1 x Blue LED 3D Light Cube Kit Note: The housing is for reference only, package does not includes!

Note: 1. This product does not include housing!! if you need the housing, please purchased separately (Product ID: 1247731). 2. This is a DIY kit, you need to have some knowledge of electronics and ability. 3. Need a lot of soldering, you should have enough patience. 4. 8x8x8 Red, Blue and Green three kinds of lights display version, not RGB LEDs, not single color display, please note!! 5. APP function only supports Android 6. File: Click here to open Feature: The backplane consists of a circuit board and component parts, which require their own soldering. 512 pcs RGB LED lights form a square three-dimensional space. With expanding wifi module, cell phone wireless connection the cube, exclusive APP control operation. (Viewing better at night). Specification: Input voltage: 5V Current: 1A-2A (2A effect is better because of the LED driver chip APM4953) Power: 5V phone charger power supply Circuit board material 1.6 mm RF-4 plate PCB board size: 150 x 150mm APP version functions: (support for Android only) 1. Through the audio cable input and output music. 2. Built-in 45 kinds of offline cool animation (power to run the animation) 3. Built-in 15 kinds of offline dynamic audio animation (with music dancing) 4. 3 D8 PC mode (control animation, which can control lights display) 5. 3 D8 PC music mode 6. Infrared remote control (long distance remote control) 7. PWM breathing light mode 8. Boot motherboard test mode 9. 15 level animation speed adjustment 10. Brightness adjustment of 10 level 11. Change word by the phone (32 patterns, 45 letters) 12. Mobile PC After the phone connected to the product wifi, you can use the exclusive APP (light cube APP) software to operate. The wifi module has been carefully PCB design and debugging, straight line transmission distance up to 10-20 meters. Circuit design: IAP12C5A60S2 + 74HC595 + APM4953 + WIFI + Infrared remote control 1. The integrated IAP12C5A60S2 high-speed 1T microcontroller 2. 5A high current MOS tube driver chip (to solve the uneven brightness) 3. High-speed scanning chip and serial control cascade chip 4. Use WIFI APP Android software control 5. Infrared remote control (Easy to control) Package Includes: 1 x RGB LED 3D Light Cube Kit

DIY QRP Pixie Kit CW Receiver Transmitter 7.023MHz Shortwave Radio Feature: Power supply: 9V-12V (Recommended 9V laminated battery) Antenna: 50 ohm, unbalanced Frequency range: transmitter local oscillator frequency: 7023kHz; receive local oscillator frequency: about 7023-7026KHz Headphones: low-impedance headphones Transmit power: 0.8W (using a 9V power supply), 1.2W (12V power supply) Suppress spurious (harmonic):-20dB Note: This is a DIY kit, you need to have some soldering skills. Instruction: Click here to open Package included: 1 x DIY QRP Pixie Kit  

DIY TDA2030A Audio Amplifier Board Kit Mono Power 18W DC 9V-24V Features: TDA2030A is widely used as Hi-Fi amplifier manifold in many computer active speakers. Easy Installation. It has the function of thermal shutdown, current limiting. Minimum transmission distortion Specifications: Output power: Maximum 18W Supply voltage: DC 9V-24V (recommended DC 12V, this voltage to the heat sink requirements are very low;) Maximum supply of this board is actually up to 40V, but you need to change the board's own electrolytic capacitor C1, the capacitor voltage value is higher than supply voltage can be use.) Quiescent current: about 25mA (disconnect to tone, connect to 8Ω speaker, 12V power supply.) Speaker impendance: 4Ω-8Ω Total harmonic distortion: THD 0.08% (Po=0.1 to 14W, RL=4Ω) SNR: 94dB-106dB (1W-15W) Heat: The higher the supply voltage, the great the volume, the higher the heat Note: This is DIY kit, you need to solder it by yourself! Package includes: 1 x DIY TDA2030A Audio Amplifier Board Kit

DIY 15 Tones Retro Wooden Hand Crank Music Box with Paper Tapes Description: Name: 15 Tones Retro Wooden Hand Music Box with Paper Tapes Material: Alloy&Wood Net weight:0.5KG Music Box Size: 125*70*50mm Color: Wooden   How to play: Put the paper tape swing in the music box, wonderful melodies will flow through your hand when you wave the hand crank. What's more you can compose your own song by using blank paper tape and hole puncher.   Note:  1.When you compose you should use the hole puncher to punch at the intersection of the theodolite and make sure the paper tape is played through. 2.You also can DIY the paper tape by using the white cardboard according to the original paper tapes. And composing by marking ong the cardboard.   Package Included: 1 x Music Box 1 x Hole Puncher 30x Paper Tape(16 comps tapes & 14 blank  tapes)

DIY Remote Control Butterfly Shape LED Flashing Kit The difference between no remote control type and the remote control type: Function Without remote control version With remote control version Buit-in music NO YES LED flash YES YES Note: This kit does not provide source code, if you need, you can try to write it by yourself This is a DIY kit, you need to have some knowledge of electronics and ability. We don't supply instruction for soldering, only supply schematic. Two types for you to choose: Without remote control version / With remote control version, please select the one you need. The following describes the type of with remote control version, without remote control type can refer to: Power on the board will automatically play 13 Music, at the same time there are 18 kinds of lighting effects with the rhythm of the music beat. (No remote control type does not play music but only flash LED). Press the remote's number buttons "0-9" and "RPT" can select built-in music. Power Key: Turn off all the lights and music (only blue LED light, which means the standby state) Mute button: Press it can turn off the music, all the lights lit EQ button: Lighting a small butterfly shaped + big butterfly shaped U / SD button: Automatic flash big, medium and small butterfly shaped EQ button: A small butterfly shaped lighting effects VOL- button: Change the shape of lighting + (7 variations) VOL + button: Change the shape of lighting - (7 variations) Package includes: 1 x LED Flashing Kit Reference diagram:

DIY Audio Stereo Power Amplifier Board Module Kit Advanced Tpye Specification: PCB size: 8.3 x 4.6cm Resistance: 6 ring blister copper Voltage: 9-15v Panel Thickness: 1.6mm Note: This is a un-soldering kit, you need to have some knowledge of electronics and ability. Any problems caused by personal reasons, not covered under warranty. Package included: 1 x DIY power amplifier kit

DIY C300 Aluminum Alloy Metal Wheel Car Chassis For Arduino NodeMCU There are six kinds for your choice: A: Gold Chassis B: Gold Chassis + Espduino kit C: Gold Chassis + NodeMcu Lua kit D: Silver Chassis E: Silver Chassis + Espduino kit F: Silver Chassis + NodeMcu Lua kit Introduction: A novel design has already coming for the tank chassis, with beautiful shape, and full metal aluminum alloy structure. In this tank chassis, a space for 9g servo is left for the ultrasonic sensor, and a space for MG995 servo is also left to rotate the mechanical manipulator. What’s more, UNO R3 and NodeMCU development boards are also designed to install. In addition, the metal panel can be used to install the wheeled car by install the 25mm and/or 37mm motor frames. Interesting, a LED light is installed to brighten the dark in the night. Under the help of the motor, the tank chassis can be smoothly turn left, right, circle, forward and backward, ect. Therefore, when you get the chassis, it can do many things for you, like getting the temperature and mobile monitor. Certainly, we have developed a series of car/tank chassis. Hoping you can choose your loved car chassis. Specifications: Name: C300 Intelligent car chassis Material: aluminum alloy Wheel: Rubber (has blue and red colors.) Product size: about 200*120*70mm Motor Parameters: Name: 25mm gear motor Output speed: 150±10%rpm No_load current: 200mA (Max) Stall current: 4500mA(max) Stall torque: 9.5kgNaN Rated speed: 100±10%rpm Rated torque: 3000gNaN Rated current: 1200mA (Max) Noise:56dB Working voltage: 9V Outside Shaft Length: 14.5mm Shaft End Play: 0.05-0.50mm Screw Size: M3.0 Diameter Of Shaft phi 4mm, D3.5 Encoder: 2pulses/circle Note: This is DIY kit and unassemble kit. Package included: 1 x Chassis 4 x Wheels 4 x Copper couplings 4 x DC motor 2 x LED light

DIY T600 Metal Wall-E Tank Chassis Robot Crawler Track DIY T600 Metal Wall-E Tank Chassis Robot Crawler TrackThere are three kinds you can choose:A: Silver Chassis WheelB: Silver Chassis Wheel Espduino kitC: Silver Chassis Wheel NodeMcu Lua kitD: Golden Chassis WheelE: Golden Chassis Wheel Espduino kitF: Golden Chassis Wheel NodeMcu Lua kitA novel design has already coming for the tank chassis, with beautiful shape, and full metal aluminum alloy structure. In this tank chassis, a space for 9g servo is left for the ultrasonic sensor, and a space for MG995 servo is also left to rotate the mechanical manipulator. Whatﾒs more, UNO R3 and NodeMCU development boards are also designed to install. In addition, the metal panel can be used to install the wheeled car by install the 25mm and/or 37mm motor frames. Interesting, a LED light is installed to brighten the dark in the night. Under the help of the motor, the tank chassis can be smoothly turn left, right, circle, forward and backward, ect. Therefore, when you get the chassis, it can do many things for you, like getting the temperature and mobile monitor. Certainly, we have developed a series of car/tank chassis. Hoping you can choose your loved car chassis. Specifications: Name: T600 Intelligent track car/tank chassisMaterial: aluminum alloyWheel: metalTrack: plastic Motor Parameters: Name: 25mm gear motorOutput speed: 150ﾱ10%rpmNo_load current: 200mA (Max)Stall current: 4500mA(max)Stall torque: 9.5kgNaNRated speed: 100ﾱ10%rpmRated torque: 3000gNaNRated current: 1200mA (Max)Noise: 56dBWorking voltage: 9VOutside Shaft Length: 14.5mmShaft End Play: 0.05-0.50mmScrew Size: M3.0Diameter Of Shaft phi 4mm, D3.5Encoder: 2pulses/circleWorking voltage for sensor: 3-5V Note: For the shipping convenience, the tank car chassis is not assembled.Track can be connected by any length with a needle. Package included: 1 x Chassis4 x Driving wheels20 x Bearing wheels2 x Track (can be changed the length)2 x DC motor2 x LED light

DIY Transparent 9g Servo Gripper Kit For Assembling Smart Car Feature: Name: 9g servo gripper NO.51 Material: 3mm thick acrylic plate Size: 160 x 80 x 35mm (L x W x H) Usage: Can be any combination of various forms of remote control car, robots. Note: This is a DIY kit, you need to assembling it. Can be used with various forms of remote control car, robots: (Package is not included the car) Package included: 1 x 9g servo gripper Kit

DIY 3D Nail Art Magnet Magnetic Stick Board Magic Polish Features: The necessary tool for magnet nail Polish Easy way and quick to create beautiful nail for long lasting magic nail tips Description: Magnet Size: app 6cm(length) X 2.2cm(width) Color: black (as you see in the pictures) Style: 7 different style for choose How to use: Step1 Apply the first layer magnetic polish, dry out Step2 Apply magnetic polish again, immediately put your nail under magnetic stick board (Please make the magnet to face your nail, the closer, the better.) Step3 Wait for 15 seconds,take away the magnetic stick board Package Included: 1 x Nail Art Magnetic Stick Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness 2.Please allow slight deviation for the measurement data 3.Please allow 2-3cm error

DIY Colorful Heart Shape LED Flashing Kit Feature: Supply voltage: 4-5.5V Dimensions: 75 x 85mm Principle: This kit contains 32 LED arranged in a heart-shaped pattern, driven by the IO port (active low); Write program control IO port to high and low level, the LED lights off or on, forming a variety of patterns effects, especially when used at night, very dynamic. Circuit is divided into three parts: the minimum system circuits, power circuits, and heart-shaped lamp circuit; Connect power 4-5.5V, press S1 latch switch (this circuit design two power interface, easy to operate), the microcontroller begin to work, 32 IO ports each string limiting resistor and LED lights connected to VCC, which LED lights which IO port is low, which is fully controlled by the program; This kit has been programmed, after assembled can be connected to display all kinds of tricks. Installation Notes: Pay attention to polarity when installing light-emitting diodes and electrolytic capacitors, long legs is positive. Note the U port direction when you install the chip seat, the positive and negative power supply can not be wrong, otherwise it will burn the chip. The middle of plug socket is positive, the outside is negative. Schematic: Click to open Package included: 1 x Heart Shape LED Flashing Kit  

DIY LM386 Amplifier Speaker Kit With Clear Box Transparent Case Description: The speaker box is kit, it need assemble all parts by yourself. (Please note before buying. We do not supply you a manual) The box size: 101 x 78 x 76mm Power supply: 9-12V DC Speaker parameters: Dimensions: diameter 52mm Total height: 28 mm Speaker resistance: 8 Ohm Rated power: 2W Maximum power capacity: 5W LM386 amplifier kit list: 1 x PCB board 1 x 100K adjustable resistor 1 x Potentiometer knob shell 1 x Pin Header(6-pin) 2 x 4.7K resistor 1 x 10 ohm resistor 2 x 104 ceramic capacitor 1 x DIP8 IC socket 1 x LM386 IC 1 x DC005 Block 1 x 3MM LED 1 x 10UF capacitor 1 x 100UF capacitance 1 x 1000UF capacitor 1 x 3.5 Audio Block KA2284 level indicator kit list: 1 x PCB board 2 x XH2.54-2P curved seat 2 x XH2.54-2P line 1 x 100 ohm resistor 1 x 10K resistor 1 x 2.2UF electrolytic capacitors 1 x 10UF electrolytic capacitor 1 x 103 blue white color potentiometer 1 x KA2284 chip 5 x 5MM green hair green LED 1 x 5MM red red LED

DIY 3W 12V 0-250MA 145x145x2.5mm Solar Panel Polysilicon Solar Cell Description: Operating voltage: 12V Power: 3W Operating current: 0-250MA Dimension: 145 x 145 x 2.5mm Scope: Solar garden lighting Small home lighting system Solar street lighting Solar outdoor advertising For a variety of low-power appliances, emergency lights, advertising lights, traffic lights, home fans, solar water pumps, solar lights and small solar systems Features: High conversion rate, high efficiency output Excellent low-light effect Epoxy resin with high transmittance quality, hardness 80, surface scratches can not be avoided, but does not affect the results Note: Because of the factory batch, the appearance may differ, but the size and function are the same. Package included: 1 x 3W 12V Solar Panel

Note: This is a DIY kit, you need to assemble it, no instruction supply Specification:   Voltage: USB female or pin header power supply, the supply voltage and the same chip voltage Crystal: 8M PCB board size: 7.4cm * 3.4cm   Feature:   1. Classic ATmega8 / ATMEGA48 the smallest system 2. 23 IO leads to facilitate expansion 3. Standard ISP download interface (board does not need a separate power supply, support ISP download interface power supply), to facilitate program download and debugging; 4. Support chips: ATMEGA8, ATMEGA48 and pin-compatible chip 5. With a self-locking switch, you can flexibly control the system USB input 6. Flexible and diverse power supply: available ISP download port power supply, the standard USB interface can be used for power supply, can also be used for power pin row. 7. External expansion 3 channel VCC, GND 8. Reset: Power-on reset and button reset 9. Expansion 1 channel led lights, easy to debug use   Package includes:   1 x PCB board 1 x 28P locking seat 1 x USB 1 x DC3-10 horns seat 1 x 8 * 8 self-locking switch 1 x 40P pin header 1 x 8M crystal 2 x 22P ceramic capacitors 2 x 104 ceramic capacitors 2 x 3MM red LED  1 x 6 * 6 button 2 x 4.7K resistor 1 x 10K resistor Test, for reference only:

PLEASE NOTE: On checkout you will have the option to "leave a note for the seller". Please use this area to specify your preferred option, size or color. Upon receipt of your order, we will also make contact with you to clarify or confirm options when necessary. Where you would like an option that has an additional price, please continue with your order as is and we will contact you with payment options for the additional amount. OPTIONS: CURRENT: 10A CURRENT: 15A CURRENT: 16A CURRENT: 18A CURRENT: 25A DIY assembles itself, the battery is changed and it is durable. Input: 5V 2.1A. Output: 5V1A/5V2A. (dual USB). Battery: 1*1260100 or 2*6060100 polymer batteries are available, the battery is not equipped, you need to purchase.

  **PLEASE VIEW ENTIRE PAGE TO AVOID MISSING ANY DETAILS BEFORE PURCHASE** WE HAVE 1000'S OF ITEMS AVAILABLE CLICK HERE TO VIEW OUR OTHER LISTINGS DIY Vintage Cute Handmade Photo Image Album  Features:   You can put any pictures in it. Binder design allow you to take off any piece without destroy the album. Perfect for sticker photos and writing any sentences near the photos. DIY hand-made photo album of their own personality;love diary,travel diary,baby growth record,family journal;works of the collection,exclusive journey log; learning materials and press information. A meaningful album for friends, families, colleagues or even yourself. Material: Paper Album Size: 270 x 190 x 16mm/ 3.7 x 7.4 x 0.63 inches within the page size: 160 x 265mm/ 6.3 x10.4 inches Color: Yellow/ White/ Blue Page quantity: 30   Notice:   Please allow 1-3mm error due to manual measurement.Pls make sure you do not mind before you purchase.   Package Included:   1x DIY Photo Album Book     PLEASE REQUEST COLOUR IN THE "QUESTION AND ANSWER" SECTION   BEFORE   PURCHASE TO AVOID DISAPPOINTMENT  AS STOCK AVAILABILITY IS NOT GUARANTEED VERY IMPORTANT (READ BEFORE YOU PURCHASE) All our items are imported from overseas directly to you. All shipments are sent with insurance and tracking for your peace of mind. Allow 20 to 40 working days for delivery. Please note your purchase may be subject to customs inspection and duties. If there are any customs related charges they are the responsibility of the buyer. We can not be held responsible for any delivery delays that are out of our control.  

Specifications: Track width: 15mm Color: As shown Size(Length x Width): appr. 10 x 7cm Power: 2 x AA battery Voltage: 3V The assembly steps: Step 1: Welding circuit Electric welding part is simpler, welding sequence according to the principle of component level from low to high, the first welding eight resistance, is important to use multimeter to confirm resistance is correct, D4, D5 R13 R14 can temporarily not welding, integrated circuit chips can temporarily not inserted Step 2: Mechanical assembly The red line is connected to the 3V positive power supply, the yellow line grounding, excess wire can be used for motor wire. Step 3: The installation of a photoelectric circuit Photosensitive resistance and light-emitting diodes (note polarity) is reverse-mounted on the PCB, and the ground distance is about 5 mm, both photosensitive resistance and light-emitting diodes are 5 mm distance. Finally, you can power test. Step 4: Vehicle debugging The right direction is along the universal wheel direction, if you press and hold the left photoresistor, the wheels on the right side of the car should be rotated. Press and hold the right photoresistor, the wheels on the left side of the car should be rotated, if the car driving back, can also exchange the wiring of two motors, if the one side normal and the other side back up, as long as you can swap wiring of back side. Click to watch installing and debugging video Note: Battery is not included. Package included: 1 x Tracking Robot Car Kit

Technical Parameters: Product Name: Modified sine wave inverter change pure sine wave rear plate Input voltage: DC380V. Input voltage: AC16V. Output voltage: AC220V. Output frequency: 50 / 60HZ (adjustable) Output waveform: pure sine wave. PCB Specifications: 165X100X50MM. 2000W using power tube: 4 / 47N60 Instructions: Product are modified wave inverter charge sine wave inverter, can make modified wave inverter 2000W, etc..., as modified pure sine wave inverter.First, remove the power tube after correction inverter, and then look at the correction inverter have how many transformers, look at the transformer secondary circuit is connected in parallel or in series, and then add the transformer parameters, modified wave transformer secondary is parallel, In each transformer secondary plus 16 laps. The secondary of the modified transformer is a series type, plus 8 laps per transformer secondary. Then in the correction transformer which transformer one empty foot plus a small voltage parameter, the small voltage parameters using 0.6 copper wire, in the transformer inside around: 5 laps, the small voltage is linked AC: 16V position. (Note: Do not open the magnetic ring when the add transformer with the parameters) After the addition of transformer parameters, we must correct the modified wave inverter high voltage capacitors in exchange for 220UF / 450V, Remember: modified wave inverter high-voltage capacitor has a positive feedback Resistance, the resistance is a few hundred K, but also need to change a large resistance, or the voltage will not rise. After testing the voltage of high-voltage capacitor (positive/negative) voltage is DC380V, the test voltage is normal, the use of cable to the sine wave after the board, after the board output voltage: AC220V / 50HZ, the output waveform: pure sine wave. Package included: 1 x DIY 2000W Pure Sine Wave Inverter Rear Plate Kit

Features: Material: Carbon steel Style: HAPPY BRITHDAY Size: 6 x 3.5cm Best used for album DIY, Dies Stencil Note: 1. Please allow 1-3mm errors due to manual measurement. 2. Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Package Included: 1 x Dies Stencils

Specifications: Panel Material: Acrylic Case Material: ABS Panel Thickness: 5mm Panel Button Hole Diameter: 6 x 30 mm, 2 x 24mm Joystick Hole: 1 x 30mm Panel Size: 30 x 20 cm Note: Acrylic surface protective film, please tear up before installation. Only Acrylic Panel and Case.The joystick, buttons and cables are not including. DIY parts, not assembled. Package Included: 1 x Arcade Joystick Acrylic Panel 1 x Arcade Joystick Case 1 Set Screws 1 Set Suckers

Feature: Material: Carbon steel Style: Butterfly Size: 6.3 x 4.3cm Best used for album DIY, Dies Stencil Note: 1. Please allow 1-3mm errors due to manual measurement. 2. Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Package Included: 1 x Dies Stencils

Introduction: When you get this tank/car chassis,you can remote control this car by your iOS/Android mobile phone. What's more, you can see the video from your smart phone. So, you can control the car by your video from your smart phone. Importantly, the connection is very simple. Let's do it. Features: Connect simply, say goodbye for the complex cable connection; Remote video control the smart car by WiFi, Gravity induction; Explicit photo from smart phone; Best choice for the studies. Size: 300*220*55mm(mm) Note: This is DIY kit and unassemble kit. Package included: 1 x Tank car chassis 1 x WRT router (with doit firmware) 1 x Development board kit 1 x HD camera

Features: The use of specially designed PCB circuit board. Electrical characteristics are very good, strong performance With better cooling effect of thermal grease. Use high power transistor, product safety and reliability without electric shock hazard PCB size: 85 x 54mm Installation of video connection, the actual installation of only 3~5 minutes: (http://v.youku.com/v_show/id_XMTYzMTcwMjc0NA==.html?from=s7.8-1.2& x) Note: Pay attention to protect the secondary coil during installation, the secondary coil for enameled wire is very fine, so don't hurt or broken wire General secondary coil is the final installation of the power detection after the successful use of glue to fix it on the PCB board. Primary coil to one end of the soldering on the right side of the circuit board "L1" soldering plate and counter clockwise to the other end of the two lap welded to the left "L1" pads, attention is counter clockwise rather than clockwise, if the direction is  reverse, the machine will not work. Unauthorized modification of power interface, if the polarity reversed, it will burn out the triode, remember. Package includes: 1 x PCB 1 x Switch 4 x Screws 1 x Heat sink 1 x Triode 1 x Screw to fi x triode 1 x Resistance 1 x Capacity 1 x Diode 1 x Primary coil 1 x Secondary coil Test pictures, for reference only!  

Description: Recommended power supply: 3V Cut out the six pillars in the matching box when installing so that the board can be closed to the shell, this can enlarge the effective dectecting distance. Diagram: Note: Battery is not included. Package included: 1 x Metal Detector Kit

Feature: Shrink size: 118 x 118 x 48mm Expanded dimension: 134 x 134 x 48mm Hole: 4mm Applies to: Handmade, making science and technology products, toys to develop practical ability to train children to explore their own spirit, to encourage children to explore ponder. Note: Easy to make, not supply instruction. Package includes: 1 x M0300 servo (90°) 2 x Plastic strip 1125 8 x Plastic strip 1113 1 x Plastic pod 2 x M3X25 pillar 15 x M3X12 screw 30 x M4X14 screw 10 x M3 nut 6 x M4 nut 25 x M4 locknut 1 set acrylic panel