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This power supply has an output of variable voltage from 1.3 to 15 Volt because it's based on an LM317 regulator in order to obtaining those voltages while a 0-15V Analog Monitor shows those ranges of reading with help of a potentiometer. Go to: http://www.youtube.com/watch?v=nWfUacvEBIw
 
What you will need:

Soldering iron and solder
Helping Hands
Needle nose pliers
Wire cutters/strippers
Wire #22
Multimeter
Electrical Drill
Drill Bits: 1.5", 3/8", 5/16"
Krazy glue

Step 1: Bill of Materials

1 ABS Plastic Box about 7"x 5" x 3"
1 Analog Voltage Power Meter 0-15V
1 Resistor 1.5 K Ohm, 1/4 Watt
1 Connector BNC Receptable
1  23" Alligerator Clip to BNC Cable, Type Cable Black
1 Potentiometer 10K Ohm with switch
1 Knob 1/4" with Screw
1 Standard Regulator 1.2 Volt to 37 Volt, 1.5 Amp
1 TO-220 heatsink with 1 Hole
1 AC/DC Unregulated Wall Transformer 9V, 0.6A ( For obtaining about 16.3 Volt)
1 PCB 2" x 2"
1 Capacitor Radial 1uF, 25V
1 Ceramic Disc Capacitor 0.1uF, 25V
1 Resistor 220 Ohm, 1/4 Watt
1 Power Jack Connector Male
<p>This project can also be seen in ebay webpage at:</p><p>http://www.ebay.com/itm/1-3-15V-Analog-Power-Supply-Kit-/122262349409?hash=item1c77676661:g:wHIAAOSwojRYStkW</p>
<p>This project can also be seen in Amazon webpage at:</p><p>https://www.amazon.com/1-3-15V-Analog-Power-Supply-Kit/dp/B00R5CGI20/ref=sr_1_1?ie=UTF8&amp;qid=1481318119&amp;sr=8-1&amp;keywords=1.3-15V+Analog+Power+Supply%2C+jameco+electronics</p>
<p>This project can also be seen in Jameco Electronics at:</p><p>http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&amp;storeId=10001&amp;productId=2207769&amp;catalogId=10001&amp;CID=CLO</p>
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<p>A power supply is an indispensable tool in your electronic lab.</p>
<p>I enjoyed developing this project.</p>
<p>This project is for you.</p>
<p>Thank you for viewing this project.</p>
With a mini LED meter and a smaller pot, you could almost put this into an altoids box. the box could be part (if not all) of the heatsink. (Assuming the use of a laptop power supply or other wall wart transformer delivering 18v or more and at least 1.5 amp) Just a thought. Bench space gets used up way too fast!! I like the use of the BNC connector, but for those without, speaker terminals work well too. Nice afternoon project though!
<p>Than you!</p>
<p>If you could change power meter to volt meter which is closer to what it is. Power is measured in watts and for dc is current * voltage.</p>
<p>Thank you!</p>
<p>I'd recomment you use something OTHER than a BNC for the output. BNC is not really meant for high current, I think. I</p>
<p>Thank you for your comments.</p>
<p>I'm planning to build my own lab psu and this is a really nice project! There's one thing I don't understand though: how could you get 16V from a 9V wall wart?</p><p>Thank you!</p>
<p>I used an unregulated wall transformer of 9VDC and it gives me about of 16V. </p><p>Thank you for your question! </p>
<p>Thank you! :)</p>
<p>Thank you, too.</p>
<p>you wrote 1.5V in the title, instead of 15V...</p>
<p>Thank you Andrea !!!</p>

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