ElectroGuruji

Instructables

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  Electronic Loud Horn Using 555 Timer

  21 6.9K
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  Adjustable 555 Timer Relay Switch | Monostable Multivibrator Circuit

  17 13K
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  DIY Musical Doorbell

  56 10K
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  How to Make a Siren Generator | UM3561 | Police, Ambulance, Fire Engine

  13 5.8K
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  How to Make a PCB at Home

  5 3.1K