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How to assemble a home telephone network

How to assemble a home telephone network

Telephone communication is a rather old invention, it was invented at the beginning of the 19th century, and to date there have been no fundamental changes. The telephone itself has become completely different, but the principle of operation is almost the same.

Materials and tools for homemade:
• two telephone sets;
• the wire;
• batteries or a 20 volt power supply;
• patch cord (telephone wire).

Telephone network manufacturing process

Step 1. Choosing a cable
For home almost any type of wire can be used in the telephone network, in this case the author used a twisted pair cable 25 meters long. If necessary, you can use a longer wire, there are no strict restrictions.

Step 2. DC source
In a regular telephone network, the voltage is from 60 volts, during a conversation the power rises slightly. For a home network, 20 volts of voltage will be enough, it can be supplied by two Krona batteries or a power supply unit of the corresponding power.


Step 3. Connection

For this procedure, you need to take a telephone wire and cut it in half. It has very thin veins; it is impossible to strip them with an ordinary knife; they must be burned. If the batteries will be used, you need to connect them in series, you can use contact clips, but this is not a prerequisite and without them everything will work. The current source is sequentially connected to the circuit, the contacts must be isolated.





Conclusion

After connecting, you can use the mini-network, but its only drawback is that there is no way to call another subscriber. To make this possible, it is necessary to provide alternating voltage in the telephone line, as is done in ordinary telephone networks.
8.3
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11 comments
To save batteries, put them one on each device through a diode connected in series, and turn on the button only for the duration of the call. If you take a button with a flip contact, connect a simple cartoon with a squeaker to a normally closed contact, then the call is simply realized: until you press the button, the call is in progress, pressed - you can talk. And the button is in the device, its condition depends on whether the handset is picked up or not. If the “native” button of the device is flip-up, use it; if not, replace it.
In fact, there does not need 20v from 2x Cron. Tk you need to power only the talk node, for which 5 ... 8v is enough
And cut off the dialer (tear off)
Well, that inductor did not give out 120 Volts, like this one! )))) But where you can adapt these, I can’t imagine! )))) But it’s a pity to throw it away.
We had a charger, charged lights, battery on the radio. The device is not homemade, industrial. While the battery is charging, the hand falls off)))
But I have two TA-57s, and one more TAI-43 Forty-third only for "EmBash" communication, but "tapiki" can also provide "CeBeshnaya" ... But now, why do I need them now ??? ))))
... And a few more "krutilok" from the "tapik" ....
By the way, information for consideration - what can be done with benefit from inductors?
Author
Yes, yes, I shy away I remember, well)) I was afraid, but still twisted
And if you take it apart and pull out the "twist", then you just do the first guy in the village. You go and hammer all your friends with an electric shock.
Author
In childhood, I dreamed about this, I was about 8. I had two apparatus, dragged from them)) One old, with a "twist", I liked most.
Author
xaxa Word shit corrected "AC"
its only drawback is that there is no way to call another subscriber.

Inspired: "- Akhapkin! Pick up the phone, I'll talk to you on the phone!"
need to provide permanent telephone line voltage
But from now on in more detail, please! The audience is impatient. ;)

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