Interface shield (CB7260E)

This circuit with TTL output was found in a 1968 EEE. The transistor can be of general use. The tunnel diode is an uncommon component today.

| Clique na imagem para ampliar |

Lightning Lamp (CB6884E)
This 2004 circuit is based on the ionization effect that occurs in old incandescent lamps with...
Single Output Current Sensor (CB5251E)
This bidirectional current sensing circuit was found in a 2005 Linear Technology application manual....
Mechanical Oscillator (CB20496E)
This circuit can be used in decoration or to draw attention, in a “fake” assembly for example. What he...