…The baby was cranky for a long time and finally fell asleep. A few minutes later the doorbell rings. And, of course, the baby wakes up, and now to calm his unlikely…
I propose a simple addition to the doorbell. Just say that it’s good for calls that are switched through the circuit of 220 V. Here we need a cartridge with a bulb and the switch. Everything is connected as shown in the figure. In normal mode when you press the button is actuated and a bell, and a lamp in the “quiet” — only lamp.
I. GALKIN, engineer
Recommend to read
CULTIVATOR? PLEASE!
In Latin language the word "cultivation" means "handling", "cultivation". If to explain in more detail, is the process of loosening the previously treated soil with simultaneous cutting...
CHAIR BED
Offer your variant of the design of the armchairs, on the basis of which you can make a new seat or redo is available. In my order was old, from a set of upholstered furniture "Narspi"....
