THE KA2410/2411 IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR. TELEPHONE TONE ... For KA2410 2A pad to be used, 2B pad not connected;. For KA2411 2B pad to be ...
FEATURES. • Designed for telephone bell replacement. • Low current drain. • Small size 'MINIDIP' package. • Adjustable 2-frequency tone.