Bell System Miscellaneous Drawings

Section Date Issue Size Title
A-5801601968-05-272176.73 KB241A Amplifier Modification (Also B-991729)
A-5803111965-11-165288.31 KBTouch Tone Connecting Diagram
A-5803121965-11-163295.91 KBRotary Wiring Diagram
A-5803391966-01-214186.42 KB1234G Coin Collector Connecting Diagram
A-5806221965-10-282218.19 KB236G Coin Collector Connecting Diagram
B-6599921967-03-013109.22 KBModification - Dial Housing (Also P-15E390)
B-7672001956-01-053141.12 KB6 Type Dial Cording Diagram
B-7677331955-11-052226.65 KBCording - 5 Type Dial
B-7677341953-11-052227.42 KBCording - 6 Type Dial
B-9002641953-09-171254.08 KBCording Connections for 283 Type Plug
B-9010351953-11-0524.29 MB206J, K, L Hand Telephone Sets - Cording
B-9062051964-12-011152.10 KBContact Alignment
B-9171391966-02-0110232.17 KB191, 195, 196, 197 CN, DN, GN, HN, CNS, DNS, GNS, HNS and 220, 223-C, D, G, H Coin Collectors - Connections
B-9171411958-11-154226.10 KB193 & 198 GN, HN, 210 & 212 G, H (CDO) Coin Collector - Connections
B-9171451958-11-153149.41 KB182 CN, DN, 200 C & D (Manual Postpay) Coin Collector - Connections
B-9428231966-02-015300.47 KBConnections for Slow Release Coin Handling Mechanism
B-9428331966-02-013274.09 KB191, 195, 196, 197 CNT, DNT, GNT, HNT, and 220, 223 CT, DT, GT, HT, 230 and 233 C, D, G, H, and 234G Coin Collectors - Connections
B-9428351967-03-014142.58 KBTrap Level Assembly
B-9428351976-04-125199.36 KBTrap Level Assembly
B-9917211968-05-272227.36 KB861A Network Modification
B-9917221968-05-012180.72 KB854A Network Modification
B-9917231968-05-272151.56 KB1220A Hand Tel Set Modification
B-9917241968-05-272167.64 KBLA Type Receiver Unit Modification
B-9917251968-05-272200.69 KB80B2A Dial Modification
B-9917261968-05-272420.18 KB25W3, -Y3, & 35A3 Dial Modification
B-9917271968-05-272405.91 KB25H4 Dial Modification
B-9917281968-05-272135.35 KB277A Amplifier Modification (Also P-90D154)
B-9917291968-05-272176.72 KB241A Amplifier Modification (Also A-580160)
B-9917301968-05-272113.97 KBVaristor & Capacitor Assembly (25H4 Dial and 25W3 Dial)
B-9917961968-05-272286.08 KB242 Amplifier Modification
B-9917971968-05-272141.78 KBD-180299 Polarity Guard Modification (Also P-90D054)
B-9917981968-05-272121.44 KBD-180191 Polarity Guard Modification (Also P-90D012)
B-9917991968-05-272203.29 KB694A & 694B Subset Modification (Also P-28E447)
BL-2057561955-03-214331.96 KB305 Type Tel. Set Connections
BL-2075151955-03-212282.22 KB303 Type Telephone Set - Connection Diagram
BL-2075211955-03-2123.59 MBD-173487, 302E, 302F, 302G, & 302H Tel. Sets
BL-2094221953-11-053155.60 KBCording Connections for 274 Type Plug
BL-2146231959-10-0553.19 MB309 Type Tel. Set - Connections
BL-2147611959-05-018342.89 KB191, 195, 196, 197 C, D, G, H, CT, DT, GT, HT, CS, DS, GS, HS Coin Collector - Connections
BL-2156501954-03-1634.19 MB306G Telephone Set Connections
BL-215934168.62 KB206M, N, P Type Hand Telephone Sets
BL-2471291959-12-159365.46 KB174C, CS, CT, G, GS, GT Coin Collector - Connections
BL-2471301959-12-019305.62 KB176C or G Coin Collector - Connections
BL-7514721958-11-155224.40 KB177G Coin Collector - Connections
BL-7514731958-11-155223.43 KB178G Coin Collector - Connections
BL-7514741958-11-158245.46 KB193G, H, 198G, H Coin Collector - Connections
BL-7590441958-11-154162.67 KB164C Manual Coin Collector - Connections
BL-7590461958-11-154189.87 KB152C Manual Coin Collector - Connections
BL-9428301959-12-151296.73 KB176CS, CT, GS, GT Coin Collector - Connections
ES-1705188845.64 KBSwitchboard Lamps
ES-4583691939-07-28159.42 KB24 and 35 Type Fuses - Resistance and Current Capacity
ES-85712767.73 KBNo. 6A Order Turret System
ESL-7388711957-11-044211.56 KB212A, B, C Hand Telephone Sets - Connecting Diagram
ESL-7388731957-11-044236.42 KB214A, B, C, D Hand Telephone Sets - Connections Diagram
ESL-7399131955-03-214284.52 KB304 Type Telephone Set
ESL-7802171955-03-212273.03 KB306A, B, C, & D Tel. Set - Connections
ESL-7805241959-10-054306.12 KB307A, B, C, & D Tel. Set - Connections
ESL-7805251959-10-054300.90 KB307E, F, G, & H Tel. Set - Connections
ESO-7386421953-11-052157.55 KBHandset Mountings - Cording Diagram - 102A and 202A Hand Telephone Sets
ESO-7386431953-11-052154.57 KBHandset Mountings - Cording Diagram - Equipped A1 Handset Mounting, 202H Hand Telephone Set
ESO-7386441953-11-052162.75 KBHandset Mountings - Cording Diagram - 202H Hand Telephone Set, 104A and 204A Hand Telephone Sets
ESO-7386451953-11-052159.34 KBHandset Mountings - Cording Diagram - 104A and 204A Hand Telephone Sets - Equipped A3 Handset Mounting
ESO-7386461953-11-052160.10 KBHandset Mountings - Cording Diagram - 206A Hand Telephone Set, 207A Hand Telephone Set
ESO-7386471953-11-052163.69 KBHandset Mountings - Cording Diagram - 215A Hand Telephone Set, 102B, C, D, and 202B, C, D Hand Telephone Sets
ESO-7386481953-11-052168.39 KBHandset Mountings - Cording Diagram - B1A and 202B, C, D Hand Telephone Sets, 102E, F, G and 202E, F, G Hand Telephone Sets
ESO-7386491953-11-052162.64 KBHandset Mountings - Cording Diagram - 102E, F, G and 202E, F, G Hand Telephone Sets, 203A, B, C Hand Telephone Sets
ESO-7386501953-11-052175.17 KBHandset Mountings - Cording Diagram - 203A, B, C Hand Telephone Sets, 104B, C, D and 204B, C, D Hand Telephone Sets
ESO-7386511953-11-052169.34 KBHandset Mountings - Cording Diagram - B3A, 104B, C, D and 204B, C, D Hand Telephone Sets, 206B, C, D Hand Telephone Sets
ESO-7386521953-11-053170.07 KBHandset Mountings - Cording Diagram - 207B, C, D Hand Telephone Sets, 215B, C, D Hand Telephone Sets
ESO-7392111953-11-052166.54 KBHandset Mountings - Cording Diagram - B2A and 202A, B, C Hand Telephone Sets, 103A, B, C Hand Telephone Sets
L-7611771968-12-181174.74 KBTest Circuit for Modular Type Tel Sets
L-7611771970-03-242210.11 KBTest Circuit for Modular Type Tel Sets
L-7727561978-01-311911.08 KBCritical Area Designation - G Type Handset Handles and Caps - 220 & 2220 Trimline Shells - 220 Type Trimline Deck - 2220 Type Trimline Deck
L-7727571978-01-3121.98 MBCritical Area Designation - 500 & 560 Type Telephone Housings, 2500 & 2560 Type Telephone Housing, 554 Type Telephone Housing, 2554 Type Telephone Housing, 700 Type Princess Housing, 2700 Type Princess Housing, AD Type Trimline Base, AC Type Trimline Base, AC Type Trimline Security Base
LA-5402641955-11-173351.59 KB592 Type Telephone Sets - Wiring Diagrams
LA-5402651955-11-172301.91 KB592 Type Tel Sets - Cording Diagram
LA-5402871956-04-042214.81 KB211J, 211L & 211M Hand Tel. Set - Cording and Wiring Diagram
LA-5402881956-04-042242.90 KB212L & M Hand Tel. Set - Cording and Wiring Diagram
LA-5679701956-02-211274.14 KB211 Type Hand Tel Set - Cording & Wiring Diagram
LA-5679701957-02-212286.67 KB211 Type Hand Tel Set - Cording & Wiring Diagram
LA-5790701959-03-142210.96 KB230 and 233 Type Coin Collectors - Wiring Diagram
LA-7750931954-07-126450.81 KBCircuit Label (LP348041), Wiring Diagram and Method of Cording
P-104410445.49 KB[Unknown Wiring Diagram]
P-1044543135.50 KB315-A Telephone Set Diagram
P-1148861321.68 KB334-A Telephone Set Diagram
P-114989138.03 KB17-E Set Diagram
P-1440101271.10 KB317-N, P, R, S Set Diagram
P-144701291.92 KB50G Set Diagram
P-15E3901967-03-013109.22 KBModification - Dial Housing (Also B-659992)
P-219534651.61 KB708-A Control Cabinet
P-244529142.62 KB317-BU Set Diagram
P-244769144.76 KB501A Set Diagram
P-28566011.16 MBSp. 653-BA Subscriber Set Per D-157315
P-28E4471968-05-272203.29 KB694A & 694B Subset Modification (Also B-991799)
P-90D0121968-05-272121.44 KBD-180191 Polarity Guard Modification (Also B-991798)
P-90D0541968-05-272141.78 KBD-180299 Polarity Guard Modification (Also B-991797)
P-90D1541968-05-272135.35 KB277A Amplifier Modification (Also B-991728)
SC-D-8995-A263.26 KBTelephone EE-8-B Wiring Diagram
T-31771-111978-07-31184.34 MBStep by Step Systems No. 1, 350A, or 355A - Intercepting Trunk Circuit From Trunk Finder or Intercepting Trunk to Trunk to Distant Office Arranged to Trip Ringing Only During Ringing Interval
T-31771-121978-07-31152.91 MBStep by Step Systems No. 1, 350-A or 355-A - Intercepting Trunk Circuit From Trunk Finder or Intercepting Trunk to Trunk to Distant Office Arranged to Trip Ringing Only During Ringing Interval
T-31771-131978-07-3191.44 MBStep by Step Systems No. 1, 350-A or 355-A - Intercepting Trunk Circuit From Trunk Finder or Connector Intercepting Trunk to Trunk to Distant Office - Without Trunk Switch - Without Intercepting Tone - Arranged to Trip Ringing Only During Ringing Interval
T-31771-141978-07-3173.60 MBStep by Step Systems No. 1, 350A or 355A - Intercepting Trunk Circuit From Trunk Finder or Intercepting Trunk to Trunk to Distant Office Arranged to Trip Ringing Only During Ringing Interval
T-31771-151978-08-10113.10 MBStep by Step Systems No. 1, 350A, 355A, 360A or 35-E-97 - Intercepting Trunk Circuit From Trunk Finder, Connector Bank or Intercepting Trunk to Operator Office Arranged to Trip Ringing Only During Ringing Interval
T-31771-161981-01-26113.46 MBStep by Step Systems No. 1, 350A, 355A, 360A, or 35-E-97 - Intercepting Trunk Circuit From Trunk Finder, Connector Bank, or Intercepting Trunk to Trunk to Operator Office Arranged to Trip Ringing Only During Ringing Interval
T-31771-171972-10-27102.29 MBStep by Step Systems No. 1, 350A, 355A, 360A or 35-E-97 - Intercepting Trunk Circuit From Trunk Finder, Connector Bank or Intercepting Trunk to Operator Office Arranged to Trip Ringing Only During Ringing Interval
T-31848-121954-11-0561.65 MBStep by Step Systems No. 1, 350A, 355A or 356A, Crossbar Systems No. 5 - Line Adapter Circuit - Multi Party - For Use with Grounded Lines or Low Insulation Metallic Lines - Pulse Correction and Relayed Ringing
T-3C292-301983-01-2634800.78 KBCommon Systems - Wiring Diagram and Interconneciton for 660 Communications Panel or 663 Communications Panel
T-3F008-111994-05-24131.53 MBSignaling and Packet Switching Systems - 3B Interface Circuit
T-3F009-111991-04-03121.65 MBSignaling and Packet Switching System - Link Node A Circuit
T-3F010-111989-05-17111.64 MBSignaling and Packet Switching System - Link Node Unit B Circuit
T-3F021-111989-11-169901.48 KBCommon Channel Signalling System - Common Network Interface - No. 5E Toll - Digital Facility Access Circuit
T-661421928-12-204146.78 KBSelector Connector Ckt - Wiring of Jack - 740A & C P.B.X.
T-80884-141501.25 KBPower Systems - Ringing Circuit - Generator and Interrupter Equipment - SXS #1, 355A & 360A Dial Offices [Illegible]
T-82447-301982-12-155331.27 KBPower Systems - Charge and Discharge Circuit - -48 Volts, 600 Amps - 100 Type Plants - 151C Power Plant
T-82588-301992-12-1133724.84 KBPower Systems - LINEAGE 2000 Controller for 24 or 48 Power Plants
T-82603-301992-12-11271.43 MBPower Systems - Charge and Discharge Circuit - 24 or 48 Volts, 6400 Amperes (Max) - LINEAGE 2000 MCS Power Plant
T-82604-301988-04-015338.42 KBPower System - Rectifier Circuit - Input: 208 Volts or 240 Volts 60 Hz - Output: 24 Volts or 48 Volts 25 Amperes
T-82604-311993-10-057298.23 KBPower System - Rectifier Circuit - Input: 208 Volts or 240 Volts 60 Hz - Output: 24 Volts or 48 Volts 50 Amperes
T-82605-301993-11-1011364.40 KBPower System - Rectifier Circuit - Input 208/240/480 Volt 60 Hz 3 Phase - 24 or 48 Volt, 100 Amp Output
T-82605-311993-08-0311420.09 KBPower Systems - Rectifier Circuit - 208/240/280 Volt, 60 Hz, 3 Phase Input - 24 or 48 Volt, 200 Ampere Output
T-82646-301989-11-245226.44 KBPower Systems - LINEAGE 2000 Small Plant XCS Controller for 24 Volt or 48 Volt Power Plants
T-82649-301991-12-2312641.63 KBPower Systems - LINEAGE 2000 Charge & Discharge Ckt - 24 or 48 Volt, 400 Amperes Maximum
T-82659-301992-06-028323.17 KBPower System - Rectifier Circuit - Input, 208 Volts or 240 Volts 60 Hz - Output, 24 Volts or 48 Volts 125 Amperes
T-83102-301991-04-0413414.46 KBPower Systems - Rectifier - 208/240 or 480 Volt 60 Hz Input - -40V, 100 Ampere Output
T-83104-301993-01-2115871.21 KBPower Systems - LINEAGE 2000 Charge & Discharge Ckt - 24 or 48 Volts, 400 Amperes Maximum
T-83191-301994-12-023379.25 KBPower Systems - Global Power Distribution System for ESS - J86334E-1
T-662007-321992-08-052166.25 KBAT&T COMPANEL 2000 Interconnection Circuit
T-7002211962-02-202409.40 KBUSAF Missile Test Center Submarine Cable System Mayaguana Control Building - Repeater Bay - Order Wire Bridge, Switching Relay and Tel Set Panel - Order Wire Bridge, Switching Relay and Tel Set Circuit