Comments on: Simple Switching Power Supply 15 Watt https://powersupply33.com/simple-switching-power-supply-15-watt.html PSU, Battery Charger, Inverter Mon, 13 Feb 2012 02:48:46 +0000 hourly 1 By: Barry https://powersupply33.com/simple-switching-power-supply-15-watt.html#comment-442 Sun, 11 Sep 2011 23:38:20 +0000 http://powersupply33.com/?p=994#comment-442 I am looking for a device in which I can connect speakers to have between 20-40 khz so as to have a way to have my neighbor’s dog to stop barking. Do you have any such power supply source for that?

Thank you.

Barry

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