October 1961.  Includes Section 55 Part 665 Issue 3 August 1961.  78 pages.  Info on Types 86 and 860A key telephones and circuit drawings.  Contributed by Steve Cichorsky.

 

Figures in this document were scanned at relatively low resolution, and we don't currently have a paper copy or higher resolution scan. Contact us if you have a better scan.

A TCI member has the printed AE publication "Technical Bulletin 210-492 - Key Telephone System - Type 10A1" consisting of 50 letter size pages plus 20 fold-out pages, covering this system in depth.  He will accept requests to  scan portions of it to meet the needs of a member of the public who needs specific information. Use the "Contact Us" link in the black menu bar above to make a request.