Folder B-Series - PBX Installation and Maintenance

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pdf B599.081 NY PBXs - #63 Induction Coil Tel Set Popular

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B599.081_May25_EB444_PBX_No63InductionCoilTelSet.pdf

B599.081 NY PBXs - #63 Induction Coil Tel Set
May 25. New York Telephone. Originally Engineering Bulletin 444. Replaces #23 and #24 induction coil telephone sets.

pdf B699.034 IB NY PBX Operator Chairs Popular

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B699.034_NY_IB_Mar45_Operators Chairs.pdf

B699.034 IB NY PBX Operator Chairs
Issue B, March 1945, NY Tel.  Contributed by Steve Cichorsky.

pdf B699.035 IB NY Dial Mountings 6000G and 6000J Popular

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B699.035_IB_NY_Jul40_DialMountings_6000G_6000J.pdf

B699.035 IB NY Dial Mountings 6000G and 6000J
July 40. New York Telephone.  Covers dial mountings for PBX boards and dust covers to seal the space between the dial and dial mounting.

pdf B699.162 IA NY No. 10 Key Turret Popular

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B699.162_IA_NY_Oct39_No 10KeyTurret.pdf

B699.162 IA NY No. 10 Key Turret
Oct 39.  New York Telephone. Covers the addition of a 1A thermistor to overcome a line lamp problem on intercept circuits.

pdf B702.002 I1 Popular

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B702.002_I1.pdf

B702.002 I1
Contributed by Russ Kirk.

pdf B702.002, I1, Jun27, 35-C Test Set BSP Popular

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35-C Test Set BSP.pdf

B702.002, I1, Jun27, 35-C Test Set BSP

Issue 1, Jun27, June 1927? - Tests relays and other apparatus on a current flow basis.

pdf B823.105 I2 No. 555 PBX - Description Popular

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B823.105_I1_Apr52_555_PBX_Description.pdf

B823.105 I2 No. 555 PBX - Description

April 1952.  Contributed by Steve Cichorsky.

pdf B899.181 IA NY No. 10 Key Turret - Description Popular

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B899.181_IA_NY_Oct33_No10KeyTurret_Description.pdf

B899.181 IA NY No. 10 Key Turret - Description
Oct 33. New York Telephone.

pdf B899.182 NY IA No 80B, 200B Order Turret Popular

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B899.182_NY_IA_Jan38_80B_200B_OrderTurretsDesc.pdf

B899.182 NY IA No 80B, 200B Order Turret
Issue A, January 1938, NY Tel. Contributed by Steve Cichorsky.

pdf B899.321 IA NY Notes on 551-type PBX Popular

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B899.321_NY_IA_Jan37_Notes551PBX_Switchboards.pdf

B899.321 IA NY Notes on 551-type PBX
Issue A, January 1937, NY Tel. Contributed by Steve Cichorsky.

pdf B899.321 IA NY Notes on 551-type PBX Switchboards Popular

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B899.321_NY_IA_Jan37_Notes551PBX_Switchboards.pdf

B899.321 IA NY Notes on 551-type PBX Switchboards
Issue A, January 1937, NY Tel.  Contributed by Steve Cichorsky.

pdf WR-B502.531 i3 Jan44 - Substitutes for Shellac Popular

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WR-B502.531_I3_Jan44_SubstitutesForShellac.pdf

WR-B502.531 i3 Jan44 - Substitutes for Shellac

Issue 3, January 44. War Related info.  Also coded WR-B502.535 and WR-B502.541.

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Recent Contributors

Thanks for new documents from Chuck Hensley, John Gilbert, Chuck Batson, Alan David, Steve Flocke, Paul Wills, Dave Gruger, Jim Prather, John Stancliff, Sam Etler, John Novack, Clint Gilliland, Steve Cichorsky and Paul Fassbender.

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