Alarm with Emergency Light 220V

Alarm and emergency light


Parts Ref./Value Type
R1 220K 1/4W Resistor
R2 470R 1/2W Resistor
R3 390R 1/4W Resistor
R4 1K5 1/4W Resistor
R5 1R 1/4W Resistor
R6 10K 1/4W Resistor
R7 330K 1/4W Resistor
R8 470R 1/4W Resistor
R9 100R 1/4W Resistor
C1 330nF 400V Polyester Capacitor
C2 10µF 63V Electrolytic Capacitor
C3 100nF 63V Polyester Capacitor
C4 10nF 63V Polyester Capacitor
D1-D5 1N4007 1000V 1A Diodes
D6 LED Green (any shape)
D7 1N4148 75V 150mA Diode
Q1,Q3,Q4 BC547 45V 100mA NPN Transistors
Q2,Q5 BC327 45V 800mA PNP Transistors
SW1,SW2 SPST Switches
SW3 SPDT Switch
LP1 2.2V or 2.5V 250-300mA Torch Lamp
SPKR 8 Ohm Loudspeaker
B1 2.5V Battery (two AA NI-CD rechargeable cells wired in series)
PL1 Male Mains plug