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Make your own 50W Hi-fi audio amplifier electronic project with protection circuit for speakers to prevent damage using simple transistors opamp and relay.

Make your own Hi-fi audio amplifier electronic project with protection circuit for speakers to prevent damage using simple transistors opamp and relay.

TL074 10 band Equalizer ZF33B.gif

TL074 10 band Equalizer ZF33B.gif

PA_50W_0SU_1.gif (19172 bytes)

PA_50W_0SU_1.gif (19172 bytes)