Introduction: Variable Power Supply

Picture of Variable Power Supply

Didnt see that anyone had done this so decided to put it on.
I use a model train train transformer as a variable power supple, i have it marked along on the top so i can see what voltage im at without measuring it, also you are easily able to reverse the polarity by going the other way


AlanCain (author)2013-05-22

Seriously. Why did I not think of this? I have two sitting downstairs in an old train set (not valuable) and now I can take one!!

Looks like you get 0-16 volts differential. That would be worth trying with electrolysis - put a fine hand to the yields and destruction.

Good job. Thank you.

baecker03 (author)AlanCain2015-01-22

especially since you can power train sets more efficiently using pwm

AlanCain (author)baecker032015-01-23

Yes, that is true. Much better. Just 'discovered' pwm and there are lots of little units available.

muddog15 (author)2014-03-30

Not to mention those can take a high load.

About This Instructable




Bio: I am a Senior in college studying Mechanical Engineering. My interests include woodworking, 3D printing, electronics and building computers
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