Tuesday, July 20, 2010

Automatic Heat Detector Circuit .

This is a simple heat detector circuit based on NPN,PNP metallic transistor , IC UM3561 . This is easy to build and also a low-cost circuit.






We have added a table to enable readers to obtain all possible sound effects by returning pins 1 and 2 as suggested in the table.

By: SUKANT KUMAR BEHARA