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B07VWV4YZ4 Price: $30.26 Score: 1000.000 Category: Tools Rating: 3 Votes: 1 Find similar products Zetiling Music Spectrum LED Kits, Audio Spectrum Analyzer Kit Crystal Cube Level Display, Accurate Sound Spectrum Meter Tower for Audio System Vacuum Tube Amplifier. Description: The PCB board uses RF-4 Class A materials, the board layout is neat, and the components are properly positioned. The LED spacing is 2cm. After many tests, this spacing is appropriate. All the key interfaces on the board are designed on the side so that it can be combined with the acrylic shell more beautifully. Features:The floor consists of a circuit board and other components of the spare parts, need their own welding. With infrared remote control debugging with acrylic shells. 42 offline animations, more than 10 minutes. 14 offline audio animations. Day / night control mode. 512 LED lights to form a square three-dimensional space, from seven kinds of brilliant mode showing a three-dimensional effect, better viewing at night. Specification: Condition: 100% Brand New Design: STC12C5A60S2+74HC245+74HC138+74HC595N Design Solution With infrared remote control debugging 42 offline animations, more than 10 minutes 14 offline audio animations 3D8 host computer mode 3D8 host computer music mode Power on PWM respirator mode Day / night control mode Boot board detection mode A photosensitive resistor can be automatically dimmed Input voltage: 5V Current: 1A~2A (2A effect is good) Power: 5V phone charger power supply Circuit board material: 1.6mm RF-4 sheet Shell size: 161mm x 161mm x 233mm / 6.34 x 6.34 x 9.17 inch (appr.) Package Included:1 x Remote control 1 x Update template 1 x Double-headed audio cable 1 x USB-DC power cord 1 x LED pin 1 x wire 1 x Four DuPont 1 x USB downloaders.	B08TZRP54K Availability: Currently unavailable Score: 5.682 Category: Tools Rating: 1 Votes: 1 Find similar products JJK Electronic Kit 3pcs ICL7107 Voltmeter DIY Electronic Production Kit DC5V 35mA Voltage Meter Digital Voltmeter Provide You with Better Quality. These electronic kits are of good quality, exquisite workmanship and stable circuit, you can buy with confidenceDescription:Measurement accuracy: It can be calibrated to obtain higher accuracy, and there are currently no parameters.Measuring range: Divided into 3 gears, 0-2V gear measuring small voltage0-20V gear measuring low voltage0-200V, measure higher voltage.Range selection method: there are solder joints for gear selection on the board,When the two points of the 0-2V gear are welded together, and the resistance of the RX welding resistance is 1K, the measurement range is 0-2V;When welding the 2 points 0-20V file together, the welding resistance of RX is 100K, and the measuring range is 0-20V;When welding the two points of the 0-200V gear together, the welding resistance of RX is 1M, and the measurement range is 0-200V;Over-range display: the first position displays 1 or -1In the kit, the range of RX is 100K and 1M, and the buyer chooses welding according to its measuring range. The voltmeter can also be changed to an ammeter. The method of changing the ammeter: PCB reserves a 2W 0.1 ohm high-precision resistance welding position on the board, solder the resistance, and then no need to solder RX. This is a 0-2A ammeter.Display color: redTools required for production: multimeter, electric iron and water tongs are needed.Package Included:3 x PCB board9 x 1N41483 x 5.1V Zener diode3 x 100 ohm resistor3 x 270 ohm resistor6 x 2K resistor3 x 20K resistor3 x 47K resistor3 x 56K resistor6 x 100K resistor3 x 1M resistor3 x 2.2MH inductor6 x 104 monolithic capacitors6 x 101 monolithic capacitors3 x 224 monolithic capacitors3 x 474 monolithic capacitors6 x 10UF25V electrolytic capacitor3 x C18153 x TL4316 x 3296-202 potentiometer3 x XH2.54-2P straight seat3 x XH2.54-2P cable3 x KF301-2 sea.
B01LWBSGKV Availability: Currently unavailable Score: 5.650 Category: Tools Rating: 1 Votes: 1 Find similar products Test Equipment PC Based 5in1 USB Digital Oscilloscope 2CH 20MHz 48MS/s Spectrum Analyzer Data Recorder DDS Sweep. Digital oscilloscope Channels2 Impedance1MΩ 25pF CouplingAC/DC Vertical resolution8Bit Gain range-6V ~ 6V（probe X1） -60V ~ 60V（probe X10） Vertical accuracy+-3% Timebase range1ns-20s Input ProtectionDiode，50Vpk AutosetYes(10Hz to 20MHz) Trigger ModeAuto、Normal and Signal Trigger TypeNo、Rising edge、Falling edge、 Rising edge or Falling edge Trigger levelYes Trigger SourceCH1, CH2 Buffer Size1MB/CH Bandwidth20MHz Max sample48MS/s Vertical modeCH1, CH2, ADD, SUB, MUL Display ModeX、Y-T and X-Y measurementsYes Wave saveOsc(Private)、Excel and Bmp Spectrum analyzers Channels2 Bandwidth20MHz AlgorithmFFT(18 windows)、correlation、power spectrum FFT points8-1048576/CHN IIR filter support Butterworth, Chebyshev I, Chebyshev II, Elliptic type of filter design Data recorder Channel 2 Impedance1MΩ 25pF CouplingAC/DC Vertical resolution8Bit Gain range-6V ~ 6V（probe X1） -60V ~ 60V（probe X10） Sample1 channel : 1K~24M Hz 2 channel : 1K~16M Hz Save FileThe maximum 4G, recording time associated with the sampling rate DDS Wave:Sine,Square(Duty circle variable), Triangle,Up Sawtooth,Down Sawtooth Amplitude: >=9Vp-p(no load) Impedance:200Ω+-10% Offset:+-2.5V Frequency Range: 1Hz~20MHz(Sine),1Hz~2MHz(Others) Frequecny Resolution: 1Hz Frequency Steadiness:+-1x100 -3 Frequency Precision:+-5x100 -3 Triangular Wave Linearity:>=98%(1Hz~10kHz) Sine Wave Distortion: =0.8%(1kHz) Square Wave Rising/Falling Time: =100ns Square Wave Duty Circle:1%~99% Sweep Sweep Range:Fs to Fe Sweep Time Range:0.1~10s Amplitude:0.5Vp-p~10Vp-p.	B094J5DG6X Price: $42.88 Score: 5.618 Category: Tools Rating: 4.1 Votes: 39 Find similar products Hexidos 8x8x8 LED Cube Kit DIY Electronic Kit Soldering Project Kit, User Needs to Solder The LED, and The Displayed Content Can Be Modified. (MULTI4). This is an electronic kit. Buyers need to be proficient in using soldering irons. Buyers need to prepare soldering ironsand solder wires by themselves. In order to make it easier for buyers toinstall successfully, we provide paper installation instructions and videoinstallation instructions. Buyers can also email us when they encounterproblems that they don’t understandduring installation. In order to make it easier for buyers toinstall successfully, we provide spare LEDs, each of which has 26 spares. In order to make it easier for buyers toinstall successfully, we soldered the motherboard and did a detailed test on the motherboard. Users only need to solder the lights, which is much lessdifficult. Of course, in addition to practicingwelding, buyers can also modify the displayed content by themselves to get thetext or graphics they want to display. We provide animated 3D files that buyerscan modify on the basis of our original animations. The accessories included in the kit are: Motherboard x1 Blue LED x250 (only use 224) Green LED x170 (only use 144) Red LED x170 (only 144 is used) Wire x1 Iron wire x1 (for fixing the light cube, itis not a solder wire) Plastic strip x1 (for bending LED anode) USB power cord x1 Program downloader + Dupont line x1.
B07W3MH11S Price: $8.99 Score: 5.525 Category: Tools Rating: 3.7 Votes: 139 Find similar products Organizer Digital LED Electronic Clock DIY Kits PCB Practice Learning Board AT89C2051 and Components DC 9V - 12V (6 Bits Digital). 1.This DIY assemble kits is equipped with 6 digits LED module, it's fun to build and also help you learn more professional knowledge about electronics. 2.It is programmed AT89C2051 MCU chip, precise time display, 24 hours format, supporting seconds correction, countdown clock, stopwatch, counter, hourly chime and alarm clock functions. 3.High quality PCB, has clearly marked the electronics components, even beginners can easily successfully. 4.Before the LEDs, it’s recommended to use a multimeter to check if there are any LEDs that are not bright.	B0BR2P5HFT Availability: Currently unavailable Score: 5.464 Category: Tools Rating: 4.1 Votes: 14 Find similar products Soldering Practice Kit Learn to Solder Kits DIY Electronic Soldering Project Learning Board. After power-on, NE555 and peripheral circuits form a multivibrator. The oscillation frequency is mainly determined by R1, RP and C2. Adjusting RP can change the oscillation frequency. The oscillation signal of the oscillator is output from pin 3 of NE555 and sent to the counting input of CD4017. (14 feet), every time a pulse arrives, the high level output by Q0-9 of the counter moves 1 bit in turn, lighting up the corresponding light-emitting diode, thus producing the feeling of running water. Among them, L11 is connected to the counting output terminal C0 of 4017. When L1-5 is lit, the C0 terminal of 4017 outputs a high level and lights up L11. When L6-10 is lit, the C0 terminal outputs a low level and L11 does not light up. If you feel that L11 is unsightly, you can also not install it, and it will not affect the circuit work at all.
B006X4NSJ2 Availability: Currently unavailable Score: 5.236 Category: Tools Rating: 4.2 Votes: 8 Find similar products K-37/K-38 RESISTOR & CAPACITOR SUBSTITUTION BOX (SOLDERING) KITS COMBO PACK. K-37:Educational kit complete with PC Board and detailed instruction book. Contains 24 different value resistors from 10 ohms to 1 meg. ELENCO K-37 Resistor Substitution Box (soldering kit) K-38 Educational kit complete with PC Board and detailed instruction book. Contains 24 different value capacitors from 100pF to 1uF. ELENCO K38 Capacitor Substitution Box (soldering kit).	B07GPGVN99 Availability: Currently unavailable Score: 5.181 Category: Tools Rating: 4.7 Votes: 126 Find similar products TKDMR Multipurpose Tester for LED TV Backlight and Constant Current Driver Board - Used in All LED Lights Repair Output 0-330V. Product model: TD3H Vin: AC 85-265V Vout: DC 0-330V (Automatic + Adjustable) Voltmeter Accuracy: <(± 0.5 ± 1%Vout) V Iout: 0-150mA (Automatic + Adjustable) Constant Current Board Testing Current: 0-999mA Ammeter Accuracy: <(±2 ±1%Iout) mA Pinput: 50VA (MAX) Temperature: -20℃~+40℃TESTING METHO Default factory setting: Output Voltage 330V, Output Current 50mA. You can testing the backlight of TV with any size at this default settings. 1. Self-testing: Plug in, turn the power switch on. The voltage is around 330V, current is 0; Contact the probes together, voltage changes to 0 and current changes to around 50mA, then testing can be started. 2. In testing: Voltage = ‘0’, SHORT CIRCUIT. Voltage = ‘330V’, OPEN CIRCUIT. 3. Testing single LED bead (Set voltage around to 20V and the current switch to 1mA): A. With right polarity: the voltage shows on the tester of a normal LED bead is about 80% of the rated voltage, for example, the operating voltage of the LED bead is 2.4V if its rated voltage is 3V; B. With wrong polarity: Voltage display the open circuit voltage. 4. Testing LED strips: Set the voltage to around 200V, change the current if need adjust brightness. Test method of Constant Current Driver Board Testing situation: the LED strip of backlight is on with the tester, but it does not work with the constant current board; A. Cut off the power of TV, unplug the interface sockets of the constant current plate and light bar; B. Connect the constant current board with the tester using the cables in the kits on right polarity. C. Insert the Red and Black pens of the tester into the anode and cathode of the interface of the LED light bar D. Turn the power of TV on. E. Testing voltage >30V, Current >30mA and keep stable, and the LED strip working normal.
B0BCJYDP44 Price: $27.99 Score: 5.076 Category: Tools Rating: 4 Votes: 132 Find similar products Soldering Project, Icstation FM Radio Kit with LED Flashing Lights Soldering Practice DIY Radio Kits LCD Display FM 87-108MHz Digital Radio Kit for Learning Teaching STEM Educational Project. .	B07DN9WYD3 Availability: Currently unavailable Score: 5.076 Category: Tools Rating: 3.6 Votes: 3 Find similar products 7s Fast Fusion Splicing Core Alignment SM Fusion Splicer Orientek T45 with 48,000 cutting cleavers. Core Alignment Fusion Splicer Orientek T45 FTTH Fusion Equipment Fusionadora fusion splicing machine with FC-30 Cleaver Main Charateristics ---4.3-inch high deﬁnition capacitive touch screen.---320 times image magniﬁcation，5mm fusion splicing for ﬁbers of ultra-short cutting length---300 groups of fusion splicing modes，100 groups of heating modes USB and SD card interfaces，U-disk automatic software upgrade---built-in modular lithium battery,supports 330 times of splicing and heating.---7s fast fusion splicing，18s highly eﬃcient heating. Precise ﬁber core alignment，ultra-low ﬁber fusion splicing consumption---10000 groups of fusion records，64 images storage Ceramic presser foot,ceramic V-block,all-in-one ﬁxture---Dual-direction splicing,automatic splicing,intelligent pyrocondensation THE BASIC PARAMETERS: Alignment method:Precise core alignment and cladding alignmentOptical ﬁber diameter:Cladding:80~150mm，coatinglayer:0.1~3mmFusion splicing consum ption(typical value):0.02dB(SMF)；0.01dB(MMF)；0.04dB(DSF)；0.04dB(NZDSF)Fusion splicing time (typical value:7sHeating time(typical value):18sGraphical display:High-performance 4.3 inch lcdMagniﬁcation time:320 times/88 timesFusion splicing record:10000 groupsBattery servicelife:Cycle charging times reach 300，can be replaced by customersExtemal port:USB/SDWarranty: 3 Year Warranty Standard Package: 1. T45 Arc Fusion Splicer12. AC Adapter13. FIS Fiber Stripper14. Spare Electrodes15. Battery Pack16. Alchol Pump Bottle17. Cleaning Wipes1008. Flat Cable Stripper19. Cooling Tray110. Fiber Cleaver FC-30111. Manual112. Carrying Case1 Attention: All buyers need to make customs clearance in time, if need nay help pls send us the message in ahead.