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The 2N3055 is a popular power transistor with a maximum collector current of 15A and a maximum collector-emitter voltage of 60V. It is commonly available in a TO-3 metal case, which provides good thermal conductivity and allows for easy mounting to a heatsink. The 2N3055 transistor has a large package size and can handle high power dissipation. Its high current capability and low collector-emitter saturation voltage make it well-suited for power applications. It is commonly used in power amplifiers, voltage regulators, and high current switching circuits. The 2N3055 transistor has been in use since the 1960s and is still widely used today due to its reliability and ruggedness. It is an NPN (negative-positive-negative) transistor with a maximum collector current of 15 amps and a maximum collector-emitter voltage of 60 volts. TECHNICAL SPECIFICATIONS OF NPN EPITAXIAL PLANAR TRANSISTORĢN3055 is a bipolar junction transistor (BJT) that is widely used as a power transistor in various electronic circuits. NPN TRANSISTOR FOR POWERFUL AF OUTPUT STAGES

As this current increases, the sound of the amplifier gets better, but the end transistors are more heating.15 AMPERE POWER TRANSISTORS COMPLEMENTARY SILICON 60 VOLTS 115 WATTSġ5 AMPERE COMPLEMENTARY SILICON POWER TRANSISTORS 60, 120 VOLTS 115, 180 WATTS This current can be regulated with the 500ohm trimmer resistor. – this is a class B amplifier, this means, that a current must flow through the end transistors, even if there is no signal on the input. – capacitor C2 regulates the higher frequencies (treble), as the capacitance grows, the higher frequencies are getting quieter. – capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequencies are getting louder. The and transistors can be any NPN type power transistor, but do not use Darlington types… The output power is around 60W. As you can see, in this design the components have a big tolerance, so you can build it almost of the components, which you find at home. The maximal input voltage is around 0.8 – 1V. The optimal supply voltage is around 50V, but this amp work from 30 to 60V.