Infrared tone transmitter (CB20977E)

This simple very low power circuit can be used in a battery powered infrared tone trigger. We found it in an American documentation from the 90s.

| Clique na imagem para ampliar |

Complementary Transistors Monostable (CB19362E)
Equivalent transistors, like the BC548 and BC558 pair can be used in this circuit that we find in an...
Turns Counter (CB18037E)
This is a project that can easily be adapted for other purposes such as counting people, objects,...
High-speed buffer (CB9556E)
Found in a 1980s documentation, this circuit makes use of components from that time. Modern...