

Product Details
- Brand: Elenco
- Model: XP-15K
- Dimensions: 4.00" h x
5.00" w x
11.00" l,
Features
- Build a regulated variable power supply
- Detailed easy to understand instructions
- Complete this kit and you will have a handy portable variable output power supply
- Made in the United States
- For 30 years Elenco has been using their strong engineering and design skills to develop reliable, affordable electronic test equipment, tools, and educational kits
Product Description
Variable voltage power supply kit. Assembly of this XP-15 Regulated Varibale Power Supply Kit will prove to be an exciting project and give much satisfaction and personal achievement. If you have experience in soldering and wring technique, you should have no problem following the detailed instructions that are provided and successfully assembling of this kit. (Kit, Assembly Required)
Customer Reviews
Most helpful customer reviews
14 of 14 people found the following review helpful.Somewhat challenging variable voltage power supply KIT
By C. Vaninwegen
I needed a variable supply voltage kit for various projects I work on and this was a project in itself. For me, that is a good thing! After soldering and assembly, it works great. The description clearly states that this is a kit and if you can solder, you can build it. So, I had to review it. Any way, assembles and functions as expected.
11 of 11 people found the following review helpful.Good Power Supply Project - Highly Recommended
By C. Hill
This Elenco "Variable Voltage Power Supply Kit" is a decent practical starter kit and is overall good quality. I have been teaching my teen son electronics and have looked for projects to help reenforce the theory with practical applications, so this kit was an easy choice.The kit has 19 electronic components (transformer, capacitors, resistors, IC regulator, etc), printed circuit board, various connectors (screws, washers, etc), a decent case, power cord, label, solder, and instructions. This is more than just a "Insert Part A in location B1" type kit as it actually teaches what each part of the circuit does and includes both a lesson and quiz to test your knowledge. Another useful section shows the wave forms that should be seen on an oscilloscope at various locations on the circuit board, which is good if you don't have one (we do, but it is not needed to build this kit).The kit does not have a display, so you will need a multimeter to confirm the output voltage along the adjustable scale. We are adding New 2 Wire Blue DC 4.5-30V LED Panel digital display Voltage Meter Voltmeter By Buyincoins so we know at a glance. It also does not have an On/Off power switch, so we are adding SPST Rocker Switch RadioShack 275-0694 (Red). Both of these additions will be easy to put in and will be a good confidence building experience for my son in learning how to modify existing circuits.Overall, this is a surprisingly good kit that makes a worthy beginner's project.CFH
11 of 12 people found the following review helpful.fun-to-build small power supply
By Claudia A. Holz
The power supply runs off of the LM317T variable voltage regulator, so it has a fairly low part count and is relatively easy to assemble. In my kit, the 220uF and 470uF electrolytic capacitors had been also replaced with one 1000uF cap, but it worked fine when assembled, so no issues there.(perhaps the design was revised without updating the instructions). Testing the supply with a multimeter, I noticed that the voltage output actually ran up to about 16.5V at its maximum, and the voltage seemed to remain stable under a load.On the downside, however, the circuit board that it comes with is fairly low quality, meaning that the thin copper traces can lift off the board and become damaged if one is not careful when putting it together, or if the power supply is dropped after it has been assembled. I was also troubled by the lack of an on/off switch, as now the only way to shut it off is to unplug it. Lastly, with a current rating of only 0.2A at 15V, I am not entirely sure how practical this is at its upper voltage limits.All things considered, everything worked as advertised, and I was able to solder the entire thing together in a couple of hours. Now that it is finished, it is quite useful for my other projects, and will probably save me quite a bit on batteries.


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