Here is a list of all the parts that you will need:
-LM3914 Bargraph Display Driver (you should be able to get one of these from your local electronics shop, and if not you can find them online)
-10 segment LED bargraph display (alternitively you could use 10 individual LEDs)
-150k resistor (you could stick together smaller value resistors)
-2.2k resistor (you could stick together smaller value resistors)
-4.7k variable resistor (potentiometer)
-470k variable resistor (potentiometer)
-10µf electroltic capacitor (ceramic and polymer ones probably work too)
-18-pin DIL socket (you can just use 20-pin one like I did if they dont have any 18-pins)
-20-pin DIL socket (these aren't necasary, but protect the IC and bargraph display from the heat of soldering)
-5k thermistor (these are a bit tricky to find, I had to settle for a 4.7k one, but you can get them of the internet)
-PCB (if you can make one, I would highly recomend it but you can do without)
-enclosure (again, this is not necassary, but it make the finished project look a lot nicer. Make sure it is the right size, I had to buy a bigger one)
-PP3 battery clip (these are easy enough to find, but I suppose you could just solder wires directly onto the battery)
-9v battery (to power it, everywhere sells them)
-2 switches (any kind will do, as long as they are locking and on/off. Also, these aren't neccasary, one is for switching the display from bar/dot and one is to turn the whole thing off and on. I only eneded up using one for power)
Tool you will need:
-Side cutters (or anything to cut off the remaining legs of the capacitor and resistors)
-Wire strippers (or you can just use the side cutters, or your teeth)
-Drill (only required if you are making the enclosure too, pillar drill recomended)
-Files (to neaten up the drill holes, if you dont have any you can use sandpaper or just drill it some more)
-Solder sucker (if you are likely to make a mistake)
-some form of adhesive (I use hot glue just to secure the circuit board, switches, and thermistor in place)
-Screwdriver (to adjust the potentiometers, unless you got the ones with knobs like mine, and to close the enclosure)
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