503 Division - TCI Library https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division?format=html Thu, 06 Feb 2014 13:59:20 -0800 en-GB hourly 1 GSP 503-400-200 i1 Aug63 - Leich L55 PBX - Installation https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/12041-gsp-503-400-200-issue-1-aug63-leich-l55-pbx-installation-ocr-r?format=html GSP 503-400-200 i1 Aug63 - Leich L55 PBX - Installation Aug 63. Contributed by Steve Cichorsky.  OCR by Clint Gilliland.

]]> https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/12041-gsp-503-400-200-issue-1-aug63-leich-l55-pbx-installation-ocr-r?format=html Aug 63. Contributed by Steve Cichorsky.  OCR by Clint Gilliland.

]]> (Anonymous) 503 Division Thu, 06 Feb 2014 13:59:20 -0800 GSP 503-620-400 i1-555-Description Tl https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/1731-gsp-503-620-400-i1-555-description-tl?format=html GSP 503-620-400 i1-555-Description Tl Dec 65.

]]> https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/1731-gsp-503-620-400-i1-555-description-tl?format=html Dec 65.

]]> (Anonymous) 503 Division Tue, 17 Aug 2010 10:38:46 -0700 GSP 503-400-700 i1 Aug63 - Leich L55 PBX - Adjustments https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/464-gsp-503-700-400-i1-leich-l55-adjustments?format=html GSP 503-400-700 i1 Aug63 - Leich L55 PBX - Adjustments Aug 63. Contributed by Steve Cichorsky.

]]> https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/464-gsp-503-700-400-i1-leich-l55-adjustments?format=html Aug 63. Contributed by Steve Cichorsky.

]]> (Anonymous) 503 Division Tue, 24 Nov 2009 02:51:13 -0800 GSP 503-400-100 i2 Apr71 - Leich L55 PBX - Description https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/465-gsp-503-400-100-i2-leich-l55-description?format=html GSP 503-400-100 i2 Apr71 - Leich L55 PBX - Description Apr 71. Missing pages 21 and 22. Contributed by Steve Cichorsky.

]]> https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/465-gsp-503-400-100-i2-leich-l55-description?format=html Apr 71. Missing pages 21 and 22. Contributed by Steve Cichorsky.

]]> (Anonymous) 503 Division Tue, 24 Nov 2009 02:51:13 -0800 GSP 503-620-400 i1 Dec65 555 PBX Switchboard Circuits https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/442-gsp-503-620-400-i1-dec65-555-pbx-switchboard-circuits?format=html GSP 503-620-400 i1 Dec65 555 PBX Switchboard Circuits GENERAL SYSTEM PRACTICES
SECTION 503-620-400
ENGINEERING-PLANT SERIES
ISSUE 1, DECEMBER, 1965
GT&E STANDARD
DESCRIPTION, CIRCUITS 555 PBX SWITCHBOARD

source: Scan by Steve Cichorsky, contributed by Jim Decker

]]> https://www.telephonecollectors.info/index.php/browse/document-repository/gsp-general-tel-system-practices-by-doc/503-division/442-gsp-503-620-400-i1-dec65-555-pbx-switchboard-circuits?format=html GENERAL SYSTEM PRACTICES
SECTION 503-620-400
ENGINEERING-PLANT SERIES
ISSUE 1, DECEMBER, 1965
GT&E STANDARD
DESCRIPTION, CIRCUITS 555 PBX SWITCHBOARD

source: Scan by Steve Cichorsky, contributed by Jim Decker

]]> (Anonymous) 503 Division Sat, 21 Nov 2009 05:20:45 -0800