Doorphone Intercom Circuits using LA4100, LA4101, LA4102

Doorphone Intercom Circuits using LA4100, LA4101, LA4102

Doorphone Intercom Circuits using LA4100, LA4101, LA4102

Doorphone Intercom Circuits using LA4100, LA4101, LA4102

R1 …….. 5K6
R2 …….. 3K
R3 …….. 47
RX …….. 220(6V)
390 (9V)
560(12V)
C1,3 …… 10nF
C2 …….. 100nF
C4,6 …… 47uF/10V
C5 …….. 47pF/50pF
C7 …….. 10uF/10V
C8,9 …… 100UF/10V
C10 ……. 220uF/10V
D1 …….. 1N4001
D2 …….. LED
VR …….. 5K
IC …….. LA4100 (6v 1Watt)
LA4101 (9v 1.5Watt)
LA4102 (9 – 12v 2.1Watt)