Description: ✅Red Soldering Practice Board. All SMD soldering exercise board kit, DIY water lamp kit, welding skill training✅Professional Skills. complete this kit, need a certain professional knowledge base, practical training experience.✅High Quality Material. high-quality double-sided spray tin FR-4 circuit board, easy to solder, not easy to oxidize, contribute to success.✅Technical Support.5V power supply, component list, circuit diagram, principle description. Please contact us for information.✅In order to improve the level of soldering, specially increase the difficulty of practice, there are a number of chip diodes, chip triodes, there are also two 14 pin, 44 pin IC chips, welding practice use. Product Description Product description of SMT soldering exercise board Power supply voltage: 5V. The ratio circuit is NE555 + 4017 application circuit, and the multivibrator is composed of NE555. The pulse oscillation signal outputs CD4017 to count through the three pins of NE555. CD4017 will output high level on q0-q4 in turn with the input pulse signal to light up the corresponding light-emitting diodes. These light-emitting diodes are arranged in a circle to form the effect of water lamp. When cd017 counts to 10, the carry end C0 will change from low to high, The driving triode Q1-Q4 is turned on to light up the LED at four corners. When the next pulse comes, the C0 end returns to the low level, and the LED at four corners goes out, and so on. Finished product of SMT welding board Solder Practice Board Kit List Schematic Diagram of SMD Welding Exercise Board The front and back of the blank board Spare parts.You need to weld and install it yourself.
Price: 24.99 USD
Location: Denver, Colorado
End Time: 2024-12-17T10:00:40.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: Does not apply
Type: Does not apply
Style: Soldering-120 Elements
