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-   -   important question please help me (http://www.diyaudio.com/forums/chip-amps/56873-important-question-please-help-me.html)

odysseybmx414 8th May 2005 04:12 AM

important question please help me
 
i need a schematic on how to build a power supply with a transformer with secondaries of +21V,-21V(2 wires) to power 2 channels(2 parallel opa549s in each channel) i think you need to use relays am i right? im confused somebody help me out plz

djk 8th May 2005 05:44 AM

http://sound.westhost.com/psu-wiring.htm

odysseybmx414 8th May 2005 09:26 PM

i meant to supply both channels with one transformer. is it better to use one rectifier and hook both channels to the pwr supply (both+V on amp to V+ output on supply) or is it better to use a seperate rectifier and capacitors for each channel?

pinkmouse 8th May 2005 11:24 PM

The latter.


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