5 V power supply (CB8181E)

This circuit was found in a 90s Electronics Now. The maximum current is 1.5 A, given by the regulators. Regulators must be provided with heat sinks.

| Clique na imagem para ampliar |

Transformer Audio Output Stage (CB18304E)
This circuit with only one transistor was found in Japanese documentation from the 1960s. The...
Tunnel Diode Regenerative Receiver (CB13339E)
This experimental circuit was found in a technical publication from 1976. The diode can be of...
Insect Killer (CB17373E)
This circuit, very current due to the problems of aedes egypt, was found in an old magazine. It is...