The door bell is realized with one IC LS1240A. The frequency of the sound depends on R1 and C3. Diodes D1, D2 and condensers C1, C2 form a voltage multiplier, as IC needs 12 Volts and home bell circuitry is usually 8 Volts. Bell input voltage have to be alternating AC voltage. 
Overall dimensions PCB 42x24mm. 

This kit is disassembled, requires assembly and soldering. 

The appearance may differ from the one in the photo without changing the parameters of the product (This means that there may be a difference in the elements used (appearance, placement, color, shape or value)).

Electronic door bell

  • Brand: Hobbykit Ltd
  • Product Code: 1055
  • Availability: In Stock
  • 5.30 лв. (2.71€)


  • 3 or more 5.10 лв. (2.61€)
  • 5 or more 5.00 лв. (2.56€)
  • 10 or more 4.70 лв. (2.40€)

Related Products

Electronic door bell

Electronic door bell

The door bell is realized with one IC LS1240A. The frequency of the sound depends on R1 and C3. Diodes D1, D2 and condensers C1, C2 form a voltage multiplier, as IC needs 12 Volts and home bell circui..

5.30 лв. (2.71€)

Melody door bell /4 melody/

Melody door bell /4 melody/

The ringer has been designed on the basis of a micro controller made by the Microchip company. The tunes recorded in the memory of the micro controller are played in a sequence for each pressing ..

7.80 лв. (3.99€)

Code door - assembled

Code door - assembled

The code lock is implemented on the basis of microcontroller PIC16F628A / PIC16F648A / by Microchip. It has the following features: - Two zones: Zone 1 - door sensor and TMP zone - 24 hours ..

33.95 лв. (17.36€)