Constant voltage 9 volt power supply

gibson manOGR Forum Member

So I have an idea to add a small stereo audio amp to some of my engines using a cheap chinese made amp found on ebay...which operates on dc voltage between 7.5 and 12 volts.

Can anyone post up a circuit diagram or suggest a source for a constant voltage power supply I could rig up to run this off track power?

It almost seems like the onboard 9 volt charging circuit and a rechargeable battery from the mth ps2 would work...but I'm not an electronics guy...

4/5/202:50 PM

Original Post

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