This equipment Is a compact type of focal battery, lamp signal operated switchboard. It is intended for indoor use only, but has been designed to withstand the high humidity of tropical climates. Capacity of the switchboard is 50 connected lines, with 10 cord circuits. The line units are demountable in groups of 10, so that if full line capacity is not desired, space and weight may be conserved by removal of one or more line units. Contributed to the TCI Library by Steve Cichorsky. OCR by Jeff Lamb. Processed by Paul Fassbender.

Sep54.  Preliminary publication. Reissued as TM 11-2134 Operator's Manual and TM 11-4134 Repair Manual.  Includes technical information and schematics.  TM11-2134,  TM11-4134.   Contributed by Clinton R. Gilliland.

108 pages. In Italian. Military Field set. Contributed and scanned by Steve Cichorsky. OCR and bookmarking by Paul Fassbender.

65 pages. Also see the preliminary info on the SB-86/P in another document. Contributed by Steve Cichorsky. OCR by Remco Enthoven, Processed by Paul Fassbender.

109 pages.  Includes TP-6 type desk telephones from several makers, including military versions of the WE 302AW-3, AE40 (TA-101/FTC), Kellogg 925BAX (TA-102/FTC), SC 1222BW (TA-113/FTC), North 3H6SL, North H-600SL and SC 1242WA.  Also the TA-236/FT (WE 500), troubleshooting and repair and test sets. Contributed by Steve Cichorsky.

21MB. 30 pages. TACTICAL AIR CONTROL PAMPHLET 55-43, December 1971.  Includes military telephones and switchboards -- AN/GTA-6A Telephone Communications Set, SB-86/P Field Switchboard, SB-22/PT Field Switchboard, SB-239/GTA Communications Patching Switchboard, TA-312/PT Field Telephone Set, AN/TTC-32 Telephone Central Office, TA-341 Field Telephone Set, AN/TTC-32 Telephone Central TA-720 Telephone Set. Contributed by Paul Fassbender.