•  
  •  

A simple electronic buzzer

This very simple circuit just uses a couple of resistors, a capacitor and the easily available 555 timer IC.

The 555 is setup as an astable multivibrator operating at a frequency of about 1kHz that produces a shrill noise when switched on. The frequency can be changed by varying the 10K resistor.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

443 L SLH TC P Universal Watt Reducer Ballast box of 6
$25.95 443 L SLH TC P Universal Watt Reducer Ballast box of 6 picture
NEW Philips Advance ASB204024BLTP / ASB-2040-24-BL-TP Magnetic Sign Ballast
$49.99 NEW Philips Advance ASB204024BLTP / ASB-2040-24-BL-TP  Magnetic Sign Ballast picture
Advance 12079 - 71A5593001D Metal Halide Ballast Kit
$107.48 Advance 12079 - 71A5593001D Metal Halide Ballast Kit picture
ADVANCE ICN2S86351 2 LT 120/277V F96HO FLUORESCENT BALLAST, NIB
$22.0 ADVANCE ICN2S86351 2 LT 120/277V F96HO FLUORESCENT BALLAST, NIB picture
Lot of 8 Osram QTP 2x40T12/UNV RS SC Rapid Start Electronic Ballasts, 120-277
$19.99 Lot of 8 Osram QTP 2x40T12/UNV RS SC Rapid Start Electronic Ballasts, 120-277 picture