Passage Alarm with High Power Output (CB25485E)

This circuit was found in the July 1992 Radio Electronics magazine. The output circuit must be equipped with a heat sink.

| Clique na imagem para ampliar |

12 to 6 V 7806 Reducer (CB4854E)
This is the traditional configuration of the 7806 as a 12 to 6 V automotive voltage reducer. The...
XTAL Tester (CB1517E )
This circuit tests crystals up to a few megahertz with ease. The circuit is from a 1977...
PUT Low Voltage Flasher (CB4252E)
This PUT (Unijunction Programmable Transistor) configuration was found in an 80s ON Semiconductor...