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D

din25390

Jan 1, 1970
0
1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?
 
B

Baron

Jan 1, 1970
0
din25390 Inscribed thus:
1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

Normally the bulb remains on except when the push is pressed !
 
J

Jasen Betts

Jan 1, 1970
0
1. I want to make ..................
" if a door bell is switched on ,there must glow bulb
outside the door and it off after 2 to 3 min"
hw can i do it?

do you want a small lamp that indicates that the button has been
pressed or a larger lamp for illumination of the area.

do you already have the bell installed, and if so what can you tell us
about it?
 
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