TJ-56-91 is a NE555+CD4017 Red Blue Automatic Flashing LED Lamp Electronic Soldering DIY Kit. The blue and red LED flash alternately according to the circuit pulses. Potentiometer RP1 can adjust the flicker frequency.
It is a very interesting DIY electronic product which enables users to understand the circuit more clearly and learn soldering skills.
1>.Red/Blue color LED flashes automatically
2>.Simple and convenient operation
1>.Product Name: TJ-56-91 NE555+CD4017 Red Blue Automatic Flashing LED Lamp DIY Kit
2>.Work Voltage:DC 9V-12V
1>.Training welding skills
1>.User needs to prepare the welding tool at first.
1.1>.Soldering iron (<50 Watt)
1.2>.Rosin core ("radio") solder
2>.Please be patient until the installation is complete.
3>.The package is DIY kit.It need finish install by user.
4>.The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.
5>.Pay attention to the positive and negative of the components.
6>.Strictly prohibit short circuit.
7>.User must install the LED according to the specified rules.Otherwise some LED will not light.
8>.Install complex components preferentially.
9>.Make sure all components are in right direction and right place.
10>.It is strongly recommended to read the installation manual before starting installation!!!
11>.Please wear anti-static gloves or anti-static wristbands when installing electronic components.
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