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yup 3 psu for 36v .Remove earth conection on PSU B and PSU C.Change PSU C 12v rail caps from any 16v - 25v to 50V (2200mF) for example
The ori version of TDA2050 has been discont...on 2012..Right now only the clone of TDA2050 on the market...This clone version 25W only..The ic protection not guaranteed 100% work.3A max...nomore 32W TDA2050 now...For the price...on my country...TDA2040 $12.50 .... TDA2050 clone only $7.45..TDA2040 more stable on low voltage .
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