Alarm siren (CB26231E)

This circuit with two 555s was found in the Encyclopedia of Electronic Circuits volume 5 of 1995. The power is high due to the use of 2N3055.

| Clique na imagem para ampliar |

Segment decoder (CB6601E)
This circuit was obtained from a 1966 General Electric documentation. It can serve as a basis for...
DC Regulated DC Converter (CB6099E)
This circuit was found in Siliconix documentation from the 1980s. Equivalent operational...
Low hysteresis comparator (CB6085E)
Obtained from a 1980s Linear Technology documentation, this circuit has a hysteresis of less than...