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Four Small Transistor Alarm Circuits

Monday, 02 March 2009 20:38

A Photo Of Ron J's Transistor Based ''Door Alarm {A}''

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Design & Author Nazrul Islam +88 01711382041 Powerd by DiscoverBD (Non Profit & Non Govt. Organization & a sister concern of Digital Ware House) (For best view, setup your screen resulation 1024 X 768)

The Author is not responsible for any kind of electronic component & Device damages that may occurred during making or Testing Period. at the beginning, do not choose a mains powered project, only build a project connected to the mains when you are more experienced and are sure you can construct it safely.

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