The link telephone intercom

[hummy]

Pl's,

I hv already bought all d necessary components, remaining d telephone and the transformer. I want 2 know what kind of T/F is 1k/8R & d kind of telephone 2 use, will Orpat telephone, MODEL: 1010 or 2318 be o.k 4 use & what kind of T/F 2 use. I'll be very glad if anyone can respond as quikly as possible


THANKS IN ADVANCE

 

[audioguru2]

The transformer was used in transistor radios years ago. It is small and has a 1000 ohm primary and an 8 ohm secondary. Most electronics suppliers have Japanese ones for a couple of dollars.

 

[hummy]

Audioguru, thanks 4 d reply. What about d telephone to be used


THANKS IN ADVANCE

 

[audioguru2]

I just noticed that the transformer's 1k primary must be center-tapped. It is fairly common.
I don't know your phones but this project uses phones with a pulse dialer or an old-fashioned rotary dial. A different project uses phones with a DTMF touch-tone dialer.

 

[hummy]

if not an old paulse dial phone, no new modern phone could be used?????????



thanks

 

[audioguru2]

In the project it tells you what type of phone to use.
There are other Link intercom telephone projects in our Projects Section. At least one of them uses phones with a DTMF touch-tone dialer. ;D

 

[hummy]

Pl's can someone help me out.
I am building d link telephone intercom and i want 2 know if orpat 1010 or 2318 will    do instead of d old phone, which is rare 2 obtain.


thanks

 

[hummy]

Audioguru thanks 4 d reply, seems i'll try other projects if i couldn't find d old paulse dial phone type.

Pl's i'll like 2 hv ur email address, in case i need any assistance, can i contact u?

THANKS AGAIN

 

[ante1]

HERE YOU CAN FIND A BOOK ABOUT PHONES: http://www.electronics-lab.com/forum/index.php?topic=4014.0