This configuration found in GE documentation from the 90s, can also be seen elsewhere in this section. It can operate with voltages from 1 to 6 V and consumes only 6 mW at 1.5 V.
In this circuit the output current is limited by R3. For a 300 mA current, R3 must have 12 Ω. For...
This circuit with the 555, was obtained in a 90s American documentation. The signal must be...
This circuit is found in an American documentation from the 80's. The circuit measures the power of...