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odysseybmx414 8th May 2005 03:12 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 04:44 AM

odysseybmx414 8th May 2005 08:26 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 10:24 PM

The latter.

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