If you are fanatical about the use of
transistors jengkol 2N3055 and MJ2955 then this circuit is the answer.
This OCL power amplifier circuit deliver a blasting 150 watt to a 4 Ohm
speaker. The amplifier circuit is very cheapest and can be powered from
24 to 32 V/5A dual power supply. You must try this circuit. Its
working great. Because Transisitor on the final amplifier will be very
hot then add the aluminum finned cooler and the fan so that the
transistor is not too high temperatures
150 watt OCL power amplifier schematic circuit
Skema Rangkaian 150 Watt OCL Amplifier
- Use a well regulated and filtered power supply.
- Connect a 50K POT in series with the input as volume control if you need.Not shown in circuit diagram
The
transistor 2N3055 NPN and MJ2955 PNP are a silicon Epitaxial-Base
Planar transistor mounted in Jedec TO-3 metal case. It is intended for
power switching circuits, series and shunt regulators, output stages
and high fidelity amplifiers.
maximum rating Transistor 2N3055 NPN and MJ2955 PNP
- Collector-Base Voltage : 100 V
- Collector-Emitter Voltage: 70 V
- Collector-Emitter Voltage: 60 V
- VEBO Emitter-Base Voltage: 7 V
- IC Collector Current: 15 A
- IB Base Current: 7 A
- Total Dissipation: 115 W
- Storage Temperature: -65 to 200 oC
- Tj Max. Operating Junction Temperature 200 oC
