This amplifier, which has a watt-fraction power, was found in an Argentine publication in 1973. The circuit uses germanium transistors but can be changed to use silicon transistors like the BC558. Component values can be approximated by current standard equivalents, such as the volume potentiometer R2 which can be 47k. The speaker can be 4 or 8 ohms, which are the current common values.
| Clique na imagem para ampliar |
