FET Constant Current Source (CB6622E)

We found this circuit in a 1968 US documentation. The power FET is a component of the time and the current is 4.5 mA only.

| Clique na imagem para ampliar |

Magnetic Alarm (CB16638E)
The sensors in this alarm are reed-switches. In the diagram we have only one, but several can be...
Who is the fast for 4 competitors (CB3859E)
We found this circuit in a Poptronics from 1998. The circuit can be extended to more competitors...
VCO With Operational (CB15466E)
The circuit shown in the figure uses two of the four operational amplifiers found on the LM324...