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Chip Amps Amplifiers based on integrated circuits

important question please help me
important question please help me
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Old 8th May 2005, 04:12 AM   #1
odysseybmx414 is offline odysseybmx414  United States
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Default 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
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Old 8th May 2005, 05:44 AM   #2
djk is offline djk
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http://sound.westhost.com/psu-wiring.htm
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Old 8th May 2005, 09:26 PM   #3
odysseybmx414 is offline odysseybmx414  United States
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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?
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Old 8th May 2005, 11:24 PM   #4
pinkmouse is offline pinkmouse  Europe
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important question please help me
The latter.
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