Sunday, September 7, 2014

SIMPLE BEEPER CKT

this ckt is a simple beeper ckt.so u can use for low voltage user.(4.5vdc).    

SPECIFICATION OF EQEUPMENT

R1  : 10 OHM         R2  :  4.7 KOHM
T1  :  SL 100           T2  :   AC 128     T3     : AC   127
C1  :  0.22 uF          D1  :1N4002        LS1  :  8 OHM

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