Doorbell

Powered by 220 volts.

The sound resembles the sound of the call electronic phone.

The tone can be adjusted by selection of capacitor 0.05 UF.

The device is equipped with a sound projector DAMS with a coil resistance of 50 Ohms. The quality and type of sound projector very strong influence on the colour of the sound and functionality of the system as a whole. The capacitors should be at a voltage below 300 volts.

Publication: www.cxem.net