Heart Monitor –Transmitter (CB25406E)

This circuit was found in a Radio Electronics magazine from November 1991. The circuit operates at 2.2 MHz and has a low impedance output.

| Clique na imagem para ampliar |

Interval for windshield wiper (CB22188E)
This windshield wiper interval was found in old documentation. The NPN transistor is general...
Tachometer (CB23682E)
This circuit was found in Radio Electronics magazine from September 1965. It uses a thermal...
Inductive Charger (CB26183E)
This circuit is for an inductive charger for the previous project, which can eventually be adapted...