DIY Powerful Ultra Bass Amplifier 4 Iron Transistor 2N3055 , No IC , Simple circuit

Heavy Bass Powerful STEREO Amplifier with 2N3055 TransistorS & MP3 Bluetooth - DIY Class A Homemade DIY Amplifier Darlington 2N3055 Transistor Extremely powerful how to add more transistor to amplifier Upgrade Power amplifier, 2N3055 amplifier, electronics #technicalDIY​ #diy​ #amplifier​ #ultrabass
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