Quote:
Originally Posted by Tubejunke
So, I now have a girlfriend gift that requires separate 4.5 and 67.5 VDC power to operate. Now if someone were really into playing with what amounts to a number of ways of approaching designing the circuits to provide this power, this would be an excellent project. And frankly I'm hoping that person is here reading this as I would like to see it find a BETTER home! LOL!
Of all the ideas for powering these things I have seen, the best seems to be making an AC based permanent supply as opposed to bundling store bought batteries to achieve the voltages needed.
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Well, depending on how interested you are in the girlfriend, I'd build the AC powered power supply. And replace all the wax caps in the radio, and any electrolytics too.