i have a rotel power amp the mains transformer blew
i have a transformer of the correct voltage but only one output 40-0-40 the original had 2x 40-0-40 one for each amp board
the amp is bridgeable
what i would like to know is can i feed both amp boards which have on board rectifiers before the smoothing caps with just one output
or should i remove the rectifiers from each board and just use one to feed both boards schematic included
many thanks Glenn
i have a transformer of the correct voltage but only one output 40-0-40 the original had 2x 40-0-40 one for each amp board
the amp is bridgeable
what i would like to know is can i feed both amp boards which have on board rectifiers before the smoothing caps with just one output
or should i remove the rectifiers from each board and just use one to feed both boards schematic included
many thanks Glenn
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If you do that it will probably work, but have a ground loop and a lot of hummmmmmm.
Nice job on the PCB! Fairly clean bypass of the bridge. You've turned your true dual monoblock amplifier into a quasi dual monoblock amplifier. That means that now, heavy loads on the first channel will sag the supply for the second channel. That's usually one of the key reasons people may desire true monoblocks. That's fine though.