This circuit was obtained in a publication for radio amateurs of the 70s. The PNP output transistors can be BD135 and BD136 while the others can be BC548 and BC558. The circuit provides a current of the order of 100 mA. The input diodes can be 1N4004 for the 110 V network and 1N4007 for the 220 V power grid.
| Clique na imagem para ampliar |
