Programmable attenuator (CB6793E)

This circuit was found in Harris' 90s documentation. The used component is uncommon today.

| Clique na imagem para ampliar |

Bridge null detector (CB7484E)
This circuit was obtained in a 1960 transistor manual from Sylvania. The circuit can be...
Ultra simple power supply (CB24886E)
This circuit is one of many similar ones that can be found on this site. This version is from...
Variable Clock (CB20108E)
The transistors on this circuit can be 2N2222. The circuit is from American documentation from the...