Universal AC/DC adaptor settings

May 21, 2005 6 Replies

I have an old Centurion universal AC/DC adaptor (Model EA10), that I want to use with my CD and audiotape players. But I seem to have lost the manual. Its specs are:



INPUT: 120V 60 Hz 12 W OUTPUT: 3,4,5,6,7.5,9,12 V CURRENT: 500 mA



What should I set the Volt Change Switch to? Thanks.


Set the output voltage to match the requirements of the CD or audiotape player.

Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca new newsgroup users info : http://vancouver-webpages.com/nnq GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca

My tape player requires 1.5V, so I guess I am out of luck. Thanks for your helpful response.

My CD and Tape player uses TWO 1.5 volt batteries so the voltage is really 3 volts. You may want to recheck this. Dave

A tape player that runs on 1.5V seems a bit unlikely but I guess it's possible. I can't really remember what tapes are :-)

My tape player 9Sony Walkman) uses only one 1.5 battery. And 1.5V is stamped next to where the adaptor cord plugs in. The lowest setting on the adaptor is 3V. Thanks anyway.

Maybe you could put two diodes in series with the 3V output. Voltage drop across a silicon PN junction is about 0.7 volts, so two diodes in series would drop the 3V close to 1.5 V (considering a 1.5V battery isn't precisely 1.5V anyway).

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