Our newest kit has everything you need to build an LM317T variable power supply. It is a classic beginners electronic kit designed around the LM317T 3-Terminal Adjustable Voltage Regulator in what is known as the TO-220 package. It is capable of supplying in excess of 1.0 Amps over a range of 1.5volts to 25volts DC output. This kit comes with the PCB and parts needed to build a variable 1-amp (or more), highly regulated DC Power Supply. It requires a DC input from a Battery or DC voltage source (5 V to 25V) such as a wall-mount type or phone charger or even a 9 volt battery. The DC input voltage must be at least 2.5v higher than the desired DC output voltage. A heat sink (supplied) may be needed for the LM317T, depending on your application. You will need soldering tools and basic soldering skills. It comes with everything needed. The PCB is 1 5/8" x 2", double-sided, PCB Thickness - 1.6mm, FR-4, with Silk Screening
Parts List: - Printed Circuit Board (1) - LM317T (TO-220) - B10K OHM Linear Taper Rotary Potentiometer (1) - 3.5mm Screw Terminal Blocks 2 pin (2) - 240 ohm 1/4 watt resistor - 1uF electrolytic capacitor - 0.1uF capacitor - Heat Sink with mounting hardware (optional: add thermal paste $1.00)
I designed the PCB and the kit for someone who is just getting started in hobby electronics to learn while making something that would be useful in making other projects.
Built by a hobbyist for a hobbyist.
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Electronics have always been fascinating to me. Things that get my attention are wireless weather sensors, clocks, lamps, motion activated devices, light activated devices, laser intruder alert systems, solar and wind power, voltage inversion and lots more. I was lucky enough to be born in 1957 which has allowed me to watch so much history as the years have passed. The NASA space program in the 1960s was so unbelievably exciting as they worked towards the goal of putting a man on the moon.
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