Triple voltage monitor (CB21516E)

Found in older American documentation, this circuit can monitor 3 or more voltages determined by resistors. Components admit equivalents.

| Clique na imagem para ampliar |

Gas Leak Alarm (CB25583E)
This circuit was published in the July 1993 issue of Electronics Now magazine. It uses a sensor from...
EMI filter between the receiver and the power network (CB15427E)
The simplest filter for this purpose is the one shown in the figure consisting of two coils and...
VHF and UHF switch with diodes (CB9227E)
This simple circuit for switching RF signals was found in an RF Design from the 90s. The circuit...