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Power supply is serving +-5 and +-12V DC. Transformer EI48/16 has outputs 2 x 12V. Rectifiers are DIL 1A. IC are screwed to Al coolers with dimensions 30 x 30 mm. Schema zdroje:
PCB (bottom side):
Inputs and outputs of ICs are blocked directly on PCB by condensers 100 nF (not shown). Components placement:
Photo:
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