Colpitts Oscillator with MOSFET (CB8141E)

Found in an American documentation from 1969, this circuit operates at a frequency determined by the resonant circuit.

| Clique na imagem para ampliar |

Monostable with input lock (CB5426E)
This circuit is from an old manual, but can be easily assembled as the integrated one is still...
Simple transistor test (CB21577E)
The simple transistor test shown in the figure can be powered by a 9V battery. The test is for...
9 V Transistor Regulator (CB20289E)
This regulator can use BD'136 as the main transistor and as a reference next to a BC548 zener. The...