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 B078BP1S4D Price: $9.98 Score: 1000.000 Category: Tools Rating: 4.4 Votes: 303 Find similar productsGikfun Electronic Hourglass led DIY Kits Welding Practice Board Blue Ray EK1886. . |  B0BF5816HF Availability: Currently unavailable Score: 6.289 Category: Tools Rating: 5 Votes: 1 Find similar productsGikfun Welding Practice Soldering Skill Training Board, LED Eyeglasses DIY Kit. Comes with English user manual and online PDF file, which will guide you how to finish step by step, perfect for school basic electronics experiment projects. |
 B0BH4VXVQM Availability: Currently unavailable Score: 5.495 Category: Tools Rating: 1 Votes: 1 Find similar productsDIY Practical Soldering Practice Kit Practice Learning Electronics Training Board. . |  B0BMV9HPLJ Price: $15.98 Score: 5.376 Category: Tools Rating: 3.6 Votes: 8 Find similar productsGikfun Heart Shaped 4 Bits Digital Flashing LED Electronic Soldering Clock Kits Soldering Practice Learning Board DIY Kit for School Project EK1980. . |
 B0BR2P5HFT Availability: Currently unavailable Score: 5.348 Category: Tools Rating: 4.1 Votes: 14 Find similar productsSoldering 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. |  B0B14VQ31N Price: $29.99 Score: 5.319 Category: Tools Rating: 3.9 Votes: 52 Find similar productsSpot Welder Control Board, 6 Gear Adjustable Spot Welding Machine Lithium Battery Control Board Kit DIY 18650/26650 Batteries, Portable Mini Handheld Welder, Spot Welder PCB Circuit Board (100-900A). ✔Easy to Use - The product package comes with a small file for maintaining the welding pen, main board of spot welder, full set of accessories. In the process of using the spot welder board, see our pictures for details. You only need to provide battery power to connect our motherboard to DIY 18650 and other batteries. |
 B001COXLC2 Availability: Currently unavailable Score: 5.102 Category: Tools Rating: 3.3 Votes: 14 Find similar productsElenco Digital Bird Soldering Kit [ SOLDERING REQUIRED ]. Are you a Do-It-Yourselfer? Hone your soldering techniques on the Digital Bird Soldering Kit. There are all kinds of birds in this world; singing all kinds of songs. But neither you nor they probably have heard anything quite like this! From the company that brings you Snap Circuits - 9 volt battery not included. - MADE IN THE USA - Elenco was founded more than 30 years ago by 2 engineers. The core of Elenco is still strong engineering and design skills. Elenco test equipment has proven to be reliable as well as affordable. Elenco supplies Universities and High Schools with quality educational kits and materials. |  B07X2PLPQV Availability: Currently unavailable Score: 5.076 Category: Tools Rating: 5 Votes: 1 Find similar productsBespick Spot Welding Machine 4.3KW Spot Welder with Pen Automatic Pulse Welder for 18650 14500 Lithium Battery Welding 0.15-0.35mm Nickel Strip with LED Lighting and Foot Pedal Control. ► Package: Spot welder Host*1 Manual*1 Spot welding pen*1 Wire-controlled pedal switch*1 18650 six battery fixtures*1 Hexagonal screw wrench*1 20A insurance pipe (110V machine with 30A) Spot welding needles for push welding head Spot welding pen spot welding needle*2 50 pieces of 0.1*4*100MM nickel plating sheet 50 pieces of 0.15*8*100MM nickel plating sheet Electric grinder for welding needle*1 ► Product Description: ★The dual-voltage welder allows for great welder portability and convenience through the use of a multi-voltage plug. ★This option lets you plug the unit into either a 110V or 220V outlet with an easy change of the plug. ★Plus, it is extremely versatile and perfect for the welder who wants to work on auto body, household repairs, or even heavier farm projects requiring extra power. ► Technical Details: Voltage: 110V/220V±20V Power: 4.3Kw(Max) Welding Current: 120~1200V Machine Body: 140*245*200mm Weight: 7kg ► Pulse logarithm setting: ★All P switches is off, 2 pairs of pulse ★When 4p is induced, 4 pairs of pulse ★When 6p is induced, 6 pairs of pulse ★When 8p is induced, 8 pairs of pulse ★At 4p and 6p, 10 pairs of pulse ★At 6p and 8p,14 pairs of pulse ★When 4p, 6p, 8p are induced, 16 pairs of pulse. |
 B07W3MH11S Price: $8.99 Score: 5.025 Category: Tools Rating: 3.7 Votes: 139 Find similar productsOrganizer 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. |  B08TZRP54K Availability: Currently unavailable Score: 5.000 Category: Tools Rating: 1 Votes: 1 Find similar productsJJK 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. |