An extremely simple audio amplifier, the setup speaks for itself. The performance is surprising for such a small circuit.
Mounting the resistors and capacitors in vertical position will make the complete amplifier so small that it can be fitted in anywhere. (An old computer speaker, for instance, will provide more than enough space.)
Parts List
Unless otherwise stated, resistor wattage = 0.25W.
Mounting the resistors and capacitors in vertical position will make the complete amplifier so small that it can be fitted in anywhere. (An old computer speaker, for instance, will provide more than enough space.)
Parts List
Unless otherwise stated, resistor wattage = 0.25W.
- R1 = 4.7KΩ
- R2 = 180KΩ
- R3 = 27KΩ
- R4 = 1.8KΩ
- P1 = 100KΩ
- C1 = 2.2µF/10V
- C2 = 100µF/10V
- C3 = 220µF/10V
- D1, D2 = 1N4148
- T1 = BC549
- T2 = BC547
- T3 = BC557
- LS = 8Ω loudspeaker, 2W
