The integrated circuit of this amplifier is not very common today. The output transistors can be TIP31 and TIP32 in heat radiators. The circuit is from the 1977 National Semiconductor Audio Handbook.
This low frequency circuit was found in documentation from the 1980s. The values of R and C...
This circuit has a frequency range of 30 Hz to 100 kHz with an output signal of 1 Vrms. We found...
Found in Popular Electronics from the 90s, this circuit uses still common components. Its power is 20...