does anyone know of an alternate IC to HT 2811??

Nov 09, 2006 1 Replies
R

hi all! Came across this circuit

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)of a doorbell with a counter. But it uses a HT 2811 chip for producing the door bell sound-unfortunately couldn't find it- does anyone know of any easily available alternative?



Also, does anyone know of anyone of any other counter other than 4026??



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E

There's a bunch of doorbell circuits here:

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The nice thing about the 4026 in the circuit is that it is a counter and 7 segment display in 1 chip. You could use a 4017 and 10 LEDs where each LED represents a number from 0 through 9.

Ed

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