Datasheet stmicroelectronics 140w audio amplifier with ic stk070 Amplifier watt circuits channels identical
HCF4052 Datasheet(PDF) - STMicroelectronics
Amplifier 140w power audio ic circuit output impedance approximately 8ohm dc 70 watt stereo amplifier circuit Hcf4052 datasheet(pdf)
140W audio amplifier with IC STK070 - Electronic Circuit
HCF4052 Datasheet(PDF) - STMicroelectronics
70 Watt Stereo Amplifier Circuit - Homemade Circuit Projects