Variable Frequency SMD 555 Astable Electronics Kit

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555 Astable electronics kit utilising SMD components and featuring a potentiometer for variable frequency, LED for indication, and external contact pad for use in other circuits. I n this kit, you will learn to solder surface mount components and make a 555 astable circuit which is one of the most common uses for the 555 timer IC. This kit is a perfect introduction for beginners soldering and can be constructed in under an hour. Common applications include fake car alarm signals, signal indication, low-frequency gate control for audio, and as a clock source for digital logic circuits. Battery: 9V PP3 (not included) Operating voltage: 3-9V PCB dimensions: 19 x 19mm RoHS and REACH compliant Instructions / documentation What's in the kit? 1 x NE555 1 x 100Ω Resistor 2 x 1KΩ Resistor 1 x 100KΩ Resistor 1 x 100nF Capacitor 1 x 10uF Capacitor 1 x Red LED 1 x PP3 Connector Show more