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pdf GSP 503-400-100 I2 Leich L55 Description Popular

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GTEP_503-400-100_i2_Apr71_Leich_PBX_L55_Desc_tci_ocr.pdf

GSP 503-400-100 I2 Leich L55 Description

Apr 71. Missing pages 21 and 22. Contributed by Steve Cichorsky.

pdf GSP 503-400-200 Issue 1 Aug63 - Leich L55 PBX - Installation Ocr R Popular

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GSP_503-400-200_Issue_1_Aug63_-_Leich_L55_PBX_-_Installation_ocr_r.pdf

GSP 503-400-200 Issue 1 Aug63 - Leich L55 PBX - Installation Ocr R

Contributed by Steve Cichorsky.  OCR by Clint Gilliland.

pdf GSP 503-620-400 i1 Dec65 555 PBX Switchboard Circuits Popular

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555 PBX Switchboard 503-620-400.pdf

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: photocopy provided by Jim Decker

pdf GSP 503-620-400-i1-555-Description Tl Popular

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GTE503-620-400-i1-555-Description_tl.pdf

GSP 503-620-400-i1-555-Description Tl
Dec 65.

pdf GSP 503-700-400 I1 Leich L55 Adjustments Popular

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Leich L55 Adjustments (complete).pdf

GSP 503-700-400 I1 Leich L55 Adjustments
Aug 63.

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Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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