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4hv.org :: Forums :: General Science and Electronics

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Wal Wart Power Supply

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magnet18

Fri May 06 2011, 08:12PM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

Maybe a circuit set up so that flipping a switch disconnects a battery charger and connects it to the speaker, and switching it off attaches the battery to the charger?
Not small by any means, just an idea.

James

Fri May 06 2011, 09:19PM

Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506

No need to disconnect the charger, you can leave a trickle charger on the battery indefinitely.

magnet18

Sat May 07 2011, 12:13AM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

I was thinking that it would create a bunch of annoying 60HZ hum in the speaker, I know the one I have sure would.

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