Contributed by Robert Guth

Western Electric Telephone and Apparatus and Equipment, January 1970

Note: Large file ± 95MB / 823 pages.

Western Electric Company | from the collection of the JKL Museum of Telephony

Compiled & Processed by Remco Enthoven | Bookmarked by Paul Fassbender

Lesson XIII, Elementary Correspondence Course, Bell Tel. Co. of PA, Diamond State Tel. Co. 1952 view highlights 300- and 500-type phone circuits. Features of the "new" 500-type sets. Contributed by Paul Fassbender.

53 pages. Contributed by Greg Sargeant. OCR by Clint Gilliland. Processed by Paul Fassbender.

118 pages. Processed by Paul Fassbender.

Contributed by: JKL Museum

Contributed by: JKL Museum

Contributed by Paul Fassbender.

August 1981.  Contributed by Steve Cichorsky.

Identifying stations on key telephone systems (A-B-C, etc.)

Sample filled-in form used to document keyset characteristics.  Used to plan an installation, and as a reference for installers and repair techs.  Sets were identified with letters and numbers.  Letters on clear plastic number card windows (Form E-2959) are covered in BSP C37.321, I5, section 2.27.  Apparently there were "forms" from -A to -Z (except -I) with the corresponding letter on the disk (e.g. Form E-2959-A).

"At multi-station key telephone set installations, as in the 1A and 1A1 Key Telephone Systems or in 750A or 755A P.B.X. systems, etc., substitute these windows in the station number card holders for the regular windows ... to designate stations A, B, C, etc., in accordance with the work sheet data furnished with the service order.  Also refer to these letter designations when reporting station visits for either installation or maintenance reasons."

Scan is poor quality, as the original was a vintage photocopied form.  Contributed by Jeremy Walters

Photos of a switchboard lamp cap display under various lighting conditions, shows many colors and symbols used.  For catalog information search for "lamp caps"  Contributed by Steph Kerman.

Extract from the 1918 Western Electric Electrical Supply Year Book catalog covering Interphone Systems.