Soldering Practice Kit 5 DIY Electronics Projects Soldering Kit DIY Tesla Coil Simple Welding Skills Plug-in Circuit Kit Learn Soldering Kit for Beginners (5-Kits-TSL)

Price: $59.99 - $29.76
(as of Jun 16, 2025 02:54:12 UTC – Details)

Product Description

The Tesla coil is a kind of transformer (resonant transformer) that operates based on the principle of resonance. It was invented by Nikola Tesla, a Serbian-American scientist, in 1891. It is mainly used to generate alternating current electricity with extremely high voltage but low current and high frequency.

The Tesla coil consists of two sets (sometimes three sets) of coupled resonant circuits. The Tesla coil is difficult to define precisely as Nikola Tesla experimented with a large number of different configurations of coils. Tesla carried out innovative experiments with these coils, such as in electrical lighting, fluorescence spectroscopy, X-rays, high-frequency alternating current phenomena, electrotherapy and wireless power transmission, as well as the transmission and reception of radio signals.

1、PCB board size: 40×31 mm

2、PCB board thickness: 1.6 mm

3、Board material: It is made of international standard sheet materials. All the pads are tin-plated and it is of high-strength material.

4、Circuit working voltage: DC 4 – 6V

5、Number of components: 17

6、Number of solder joints: 18

7、Function/feature: Wireless transmission to light up LEDs.

8、Sample welding time: Approximately 35 minutes.

The lucky turntable is a tool for predicting in advance which position the rotating disc will stop at when it comes to a halt. It can also be used in number-guessing games, electronic dice, lottery machines and so on. The electronic lucky turntable achieves the same functions in an electronic way. In this kit, 10 LEDs are arranged in a circle. When the button is pressed, each LED will light up in turn. At the beginning, the flowing speed is very fast, making it seem that all the LEDs are blinking together. Then the flowing speed will become slower and slower until it finally stops on a certain LED and no longer moves. If the last lit LED is the same as what the player has predicted, it means that the player has “won the prize”.

1、PCB board size: 58×58 mm

2、PCB board thickness: 1.6 mm

3、Board material: It is made of international standard sheet materials. All the pads are tin-plated and it is of high-strength material.

4、Circuit working voltage: DC 3.5 – 6V

5、Number of components: 21

6、Number of solder joints: 61

7、Function/feature: NE555 + CD4047 lucky turntable

8、Sample welding time: Approximately 20 minutes.

This doorbell PCB board is elaborately designed and manufactured, possessing outstanding performance. Its layout is reasonable and the components are welded firmly, which can ensure long-term and stable operation. It can be perfectly adapted to both households and small office spaces, providing you with convenient doorbell functions.When it comes to installation, our doorbell PCB board is very convenient. It features a simple and clear circuit design, enabling even non-professionals to complete the installation with ease. What’s more, it is compatible with multiple types of doorbell buttons and sound-emitting devices, allowing you to freely match them according to your preferences and create a personalized doorbell system.In terms of quality, we have strict supervision. Each PCB board is made of high-quality materials. Choosing our doorbell PCB board means choosing peace of mind and convenience. Let every doorbell ring be clear and pleasant, bringing more comfortable experiences to your life and work.

1、PCB board size: 43×35 mm

2、PCB board thickness: 1.6 mm

3、Board material: It is made of international standard sheet materials. All the pads are tin-plated and it is of high-strength material.

4、Circuit working voltage: DC 4 – 7V

5、Number of components: 18

6、Number of solder joints: 40

7、Function/feature: NE555 doorbell function

8、Sample welding time: Approximately 25 minutes.

This kit is mainly composed of a clock generation circuit and a decimal counter circuit. It consists of a self-excited multivibrator with the NE555 as the core. The power supply charges the capacitor C1 through resistors R2, R3 and R4. When C1 just starts to be charged, pin 2 of the NE555 is still at a low level, so pin 3 (the output terminal) is at a high level. When the power supply charges C1 through R2, R3 and R4 to two-thirds of the power supply voltage, the level of pin 3 of the output terminal changes from high to low, and the internal discharge tube of the NE555 turns on. Then the capacitor C1 discharges through R4, R3 and pin 7 of the NE555. Until the voltage across C1 is lower than one-third of the power supply voltage, the level of pin 3 of the NE555 changes from low level to high level again, and C1 is charged again. In this way, oscillation is formed in a cycle. The charging time is 0.695×(R2 + R3 + R4)×C1, and the discharging time is 0.695×(R4 + R3)×C1. Adjusting R4 can control the output frequency of the oscillator. The clock oscillation signal of the NE555 is continuously applied to pin 14 of the CD4017. There are 10 LEDs connected to the 10 output terminals of the CD4017. When the 10 output terminals of the CD4017 alternately generate high levels under the action of the clock signal, D1 – D10 are lit up in turn, thus forming a flowing light effect. Adjusting R4 can adjust the flowing speed of the LEDs.

1丶PCB board size: 73×32 mm

2丶PCB board thickness: 1.6 mm

3丶Board material: It is made of international standard sheet materials. All the pads are tin-plated and it is of high-strength material.

4丶Circuit working voltage: DC 3 – 5V

5丶Number of components: 29

6丶Number of solder joints: 79

7丶Function/feature: NE555 + CD4017 with adjustable frequency

8丶Sample welding time: Approximately 25 minutes.

The circuit uses sound to control 11 LEDs to light up in a flowing manner, which is suitable for assembly practice, skill training, assembly competitions and so on. This kit can display the functions of CD4017 in a very intuitive way and is a kit for learning about counters, frequency dividers and color lamp controllers. Meanwhile, this kit has excellent effects, is full of interest and practicality, and is also the preferred material for beginners to get started. Q1 and its peripheral circuits form a simple amplification circuit. The MIC converts sound signals into electrical signals, which are then coupled to Q1 through C3 for amplification. A voltage signal with high and low changes is formed at the collector of Q1. The voltage with sufficient amplitude is sent to the counting input terminal (pin 14) of CD4017. Every time a pulse arrives, the high level output from Q0 – Q9 of the counter shifts by one position in sequence, lighting up the corresponding light-emitting diodes and thus creating a flowing effect. Among them, L11 is connected to the counting output terminal C0 of 4017. When L1 – L5 are lit, the C0 terminal of 4017 outputs a high level and lights up L11. When L6 – L10 are lit, the C0 terminal outputs a low level and L11 is not lit. If you think L11 affects the aesthetics, it can also be installed without affecting the operation of the circuit at all.

1丶PCB board size: 64×26 mm

2丶PCB board thickness: 1.6 mm

3丶Board material: It is made of international standard sheet materials. All the pads are tin-plated and it is of high-strength material.

4丶Circuit working voltage: DC 4 – 12V

5丶Number of components: 24

6丶Number of solder joints: 48

7丶Function/feature: CD4017 sound sensor RGB LED

8丶Sample welding time: Approximately 20 minutes.

SUPER VALUE: There are 5 sets of soldering kits with different functions including Tesla Coil wireless light, lucky turntable, doorbell, adjustable and sound-controlled flash LED, to meet your kinds of soldering needs which makes students get a better understanding on Math and Physics.
STEM KIT: This is an awesome Science project For professional electronic engineer and students’ STEM Competition. They are easy to learn and done, which are used everywhere in our daily life, which means of important Scientific research and practical significance.
GREAT GIFT: They are great gifts prepared by parents for kids who are interested in. It is so amazing to share the DIY time and realize your great idea into reality with kids, which just need to follow some easy tips to get this skill.
WISE CHOOSE: We choose them from thousands of sets to help new starter who want to learn to solder in a short time.
NICE SUPPORT: There are component list, circuit diagram, principle description and finished product diagram. Any problems, please contact us for information.