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Joined: Nov 2009
Posts: 451
Member
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OP
Member
Joined: Nov 2009
Posts: 451 |
Hi,
I have just obtained an old Bell Systems April 1973 Interconnection Service Manual. This tomb has information on interconnecting keysystems with PBXs, trunk circuits, etc.
If anyone needs something from this, let me know and I will scan it for you. I will scan it the best I can without cutting it apart.
I do find it to be quite interesting.
Now if I can only find a set of station service manuals!
Best
Joe
Real comms took 200lb teletypes, hand keys, sounders, operators and cranked phones!
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