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Permalink Reply by Tom T on February 17, 2015 at 5:51am

Sounds like a great solution for a lot of applications. The data sheet for the LM2596 makes it sound pretty easy to set up. Does it need a heat sink?

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Permalink Reply by Uncle Fred on February 17, 2015 at 6:38am

Tom,

No heat sink is needed for powering the Roland 10GX. My voltage regulator doesn't even get warm. It's the "Buck" type which is pretty efficient.

The voltage regulator came assembled on the circuit board. They are very inexpensive on Ebay.

I do use the LIPo's for a lot of applications. They make round ones that look like could be directly substituted for round batteries. I haven't gotten one of those. I already had all of this stuff from RC electric flying.

The chargers are a little investment. I got a nice USA made cell balancing one 5 years ago. I think a good one can be had for $30. The battery savings are remarkable.

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Permalink Reply by Tom T on February 17, 2015 at 7:44am

I see what you mean by inexpensive.......

Under $5.00 including shipping on ebay. And that includes a digital voltage readout. That's just amazing.

A small wet cell motorcycle battery should keep you playing for days without a recharge.

I used to fly RC planes so I am familiar with those battery packs and the charger. Still have it in a box some place.

Thanks for all the useful information.

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Permalink Reply by Tom T on February 17, 2015 at 9:44am

Here is the ebay listing link Voltage Reg

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Permalink Reply by Tom T on February 17, 2015 at 11:05am

$2.88 including shipping?!?! What could this stuff cost to build? Shipping is at least $1.50 even on a Chinese Junk. These prices scare me..........

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Permalink Reply by Tom T on February 17, 2015 at 12:14pm

There's no question that this type of device (variable output) is a great idea. How many different devices do you have that each need a different voltage (5.7, 9, 12, 17, etc, etc etc). With the Amp rating, it could power a lot of stuff.

See, there you go, directing me back to ebay "just in case"....

Permalink Reply by Keith on February 17, 2015 at 8:09am

this is why I love this hobby and board, necessity is still the mother of invention, and so many great things are begun with the question "Well why couldn't I...?)  great stuff and ideas to stay busy for years.. thanks!

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Permalink Reply by Mungo Park on February 19, 2015 at 10:01am

Beauty just ordered 2 cheaper than a cup of coffee, thanks for sharing.

                            Cheers Ron

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