This device is realized wit one IC NE555, working as a two-frequency generator. 
The first tone is generated when button is pressed and the second - when released. 
Power supply 6 to 12 Volts. 
Overall dimensions PCB 46x29mm. 

This product is a DIY assembly kit.

Electronic melody door bell

  • Brand: Hobbykit Ltd
  • Product Code: 1034
  • Availability: In Stock
  • 2.17 € (4.24 ЛВ.)


  • 3 or more 2.10 € (4.11 ЛВ.)
  • 5 or more 2.00 € (3.91 ЛВ.)
  • 10 or more 1.90 € (3.72 ЛВ.)

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