Classic Rotary Phones Forum

Telephone Switching => Key Systems (Electronic, 1A2 etc) => Electro-Mehanical Key Systems (1A1, 1A2 etc) => Topic started by: Key2871 on July 15, 2021, 03:33:40 PM

Title: Schematic, or link to view a schematic for an ITT 401 B
Post by: Key2871 on July 15, 2021, 03:33:40 PM
Does anyone here have a scan or link I can view a ITT 401B KTU?
I thought I had one but I guess not.
Title: Re: Schematic, or link to view a schematic for an ITT 401 B
Post by: payphone2830 on July 31, 2021, 08:08:16 PM
Hey Ken I have one, see attached.

Let me know if you want the whole book.
Title: Re: Schematic, or link to view a schematic for an ITT 401 B
Post by: Key2871 on July 31, 2021, 09:10:13 PM
That will do nicely, thanks!