30W Class AB amplifier by TIP2955 + TIP3055

To set the above amplifier up, set R1 to max and R12 to 0. After doing this successfully, power on the amplifier. Set R1 so that the measured output offset is between 30 and 100mV. Once set, adjust R12 slowly to achieve a quiescent current of around 120mA. Keep checking the quiescent current as the amp heats up as it might change due to voltage drop changes in the output devices caused by heat. The heatsinks should be 0.6K/W or less for two amplifiers.

14 watts audio amplifier with lm301 and tip2955-tip3055
The following circuit is a Audio amplifier which can give 14 watts of power. Feature : provide 14 watts of power, a discrete power op-amp, gain of approximately 150, preamp has voltage gain of ...
The multi-purpose Amplifier using TDA2030
This The multi-purpose Amplifier using TDA2030. It is have power 8 watt (RMS) at 8 ohm loudspeakers. It is have low noise be valuable THD (Total harmonic distortion) 0.1% , When friends ...
65W Amplifier Class AB by LF351 ,TIP3055 and TIP2955
I like mini power amplifier less 100W because it is low cost nad easy to make project. The 65W Amplifier Class AB,I use main part electronics are IC LF351 and thansisror two part TIP3055 an ...
Easy Amplifier HiFi OCL 150W rms by Transistor
A younger brother who study electronics side tell want power amplifier hifi the size about 100W to 150W is model OCL Class AB. I then advise a younger brother try out this circuit. Becaus ...
10-14W Class A amplifier by TIP3055
I have built this amplifier and it does sound good. It requires a preamp as it hasn't got much gain. It requires big heat sinks and a large transformer and a great power supply and careful wir ...