Telephone Switching > Electro-Mehanical Key Systems (1A1, 1A2 etc)

Schematic, or link to view a schematic for an ITT 401 B

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Key2871:
Does anyone here have a scan or link I can view a ITT 401B KTU?
 I thought I had one but I guess not.

payphone2830:
Hey Ken I have one, see attached.

Let me know if you want the whole book.

Key2871:
That will do nicely, thanks!

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