The amplifier circuit does not have any speaker protection circuit at the output stage so it is important to make sure the output connection is properly insulated before connecting the transformer power. Shorting the speaker output may lead to the damage or explosion of the transistors. You can use any speaker protection circuit if you want in the future.
Circuit Diagram
The combination of TIP 35 and TIP 36 transistors are able to provide the output RMs of 60 watt at 8 ohm speakers or 120 watt power at 4 ohm speakers. The amplifier is providing the best quality performance for satellite speakers or center channel speakers in the 5.1 system.
Specifications
- Input sensitivity for 60 watt output – 1V give 66 watts
- Gain – 27dB
- Frequency can handle – 10 hz to 23Khz
- Input impedance – 22K ohms
- Less noise at normal working condition
Most of the time the 560 Ohms resistor is not correct so in this time you need to properly check and use 560 oms resistor or use 2K trim pot and adjust it to 560 ohms. The input power supply of this amplifier is about 35V dual power supply.
Good day, do you have the 120 watts amp in kit form, i want to buy