Micro Power Schmitt Trigger (CB25139E)

Using a CA3030, this circuit was found in the May 1988 Radio Electronics magazine. The power supply must be symmetrical.

| Clique na imagem para ampliar |

Zero crossing detector (CB3889E)
This is one of many zero crossing detector that can be found in this section. It was found in...
Transistor High Frequency VCO (CB15468E)
In the figure we show a Varicap-controlled VCO capable of generating signals in the range of a few...
Voltmeter (CB7953E)
JFET This configuration, quite common in this section, was found in a 90s American documentation. The...