Electronic chimes - doorbell with a difference

1-14 — elektor january 1982 electronic chimes Technical data for the SAB 0600 supply voltage range typical quiescent current consumption 1 pA typical operational current consumption 160 mA typical peak power output (after tone 3) 160 mW trigger voltage range (at pin 1) 1.5 V ... +Ub operational temperature range 0... 70°C DA 7 .. . 11 V The electronic chimes are constructed around the SAB 0600, which was designed to create a tuneful gong-like sound without the need for many additional components. The device is manufactured by Siemens, who have attempted to keep the current con- sumption and the external component count to a minimum. The typical quiescent current of the SAB 0600 is around 1 pA, which means that if the circuit is powered from batteries they should last a relatively long time before having to be replaced. The only other components required for the basic version of the electronic chimes are one resistor, three capacitors and a small loudspeaker (see figure 1). This...