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Hot-Nut

Power Supply v Battery Charger

I have a small telephone amplifier, currently powered by a 9V standard battery. There is the option to use a 7V DC 100mA power supply in place of the battery. I have a spare mains to DC battery...
09:17 Wed 22nd Apr 20093 answers, last by ACtheTROLL 13:04 Wed 22nd Apr 2009

Only 1 question