That is the circuit diagram of 70W OCL power amplifier with output vigor of 70 watts single channel. It uses power transistor TIP2955 and TIP3055 as essential factor. The power provide used for this amplifier is a symmetrical / twin polarity power supply with output voltage 25V – 32V. This amplifier and be used to force the four-sixteen Ohms loudspeaker. For stereo sound method utility, you need to make two similar circuit and use 5A transformer for power give.
Transistor TIP2955 and TIP3055
70W OCL Power amplifier
- Avoiding the cost and bulk of an output capacitor
- better immunity to motorboat oscillation
- larger output power at very low frequencies and DC