Reply to "More than one speaker?"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

@Danr posted:
Thanks for info, John. Maybe I’ll tinker around with this. For power I was thinking of using track power with a rectifier and buck converter.

For sure you want to use track power! Batteries are such a PITA in the long term for operating.

I make my own power modules from an eBay 70 cent switching module and a little sandwich board for input power conditioning. It supplies 300 or so milliamps at an adjustable voltage of my choice. The whole package is 5/8"W x 3/4"L x 3/4"H, being a switcher, it doesn't get hot like a linear supply would.

Assembled Power Supply

eBay switching module

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2/22/2410:23 AM

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Assembled Power Supply

eBay switching module

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