This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by simply replacing TR2 with a BC557 and TR1 with a BC547. TR4 can be a BD136 and TR3 a BD135. The diodes are 2A.
| Clique na imagem para ampliar |
This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by simply replacing TR2 with a BC557 and TR1 with a BC547. TR4 can be a BD136 and TR3 a BD135. The diodes are 2A.
