Folder B-Series - PBX Installation and Maintenance

Documents

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

1337 downloads

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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 B699.162 IA NY No. 10 Key Turret Popular

1291 downloads

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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 B522.225 i1 Oct51 - 507A, 507B PBX - Installation Popular

2154 downloads

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B522.225_I1_Oct51_PBX_No507A_B_Installation.pdf

B522.225 i1 Oct51 - 507A, 507B PBX - Installation

Issue 1, 1951-10-01

pdf B204.448 I2-se Popular

2346 downloads

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B204.448_I2-se.pdf

B204.448 I2-se

Recorded Telephone Dictation Trunks - SD-65728-01 and
SD-65788-01 - Operation Tests - 701A, 701B, 711A, 711B, 740A, 740AX,
740B, 740C, 740E, 755A or 756A PBX, Issue 2, 1960-04-01

pdf B251.001 I4-se Popular

2209 downloads

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B251.001_I4-se.pdf

B251.001 I4-se

Line Finders - Operation Tests - 701A, 701B, 711A, and 711B
PBX, Issue 4, 1960-04-01

pdf B256.222 I2-se Popular

2188 downloads

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B256.222_I2-se.pdf

B256.222 I2-se

Attendant Trunk Circuits - 756A PBX, Issue 2, 1960-01-01

pdf B502.093 I1-se Popular

2111 downloads

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B502.093_I1-se.pdf

B502.093 I1-se

Transmitter Transfer Unit - Description and Installation,
Issue 1, 1960-06-01

pdf B522.225 i3 Jan60 - 507A, 507B PBX - Installation -se Popular

2261 downloads

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B522.225_I3-se.pdf

B522.225 i3 Jan60 - 507A, 507B PBX - Installation -se

Issue 3, 1960-01-01

pdf B523.602 I1-se Popular

2357 downloads

Download (pdf, 140 KB)

B523.602_I1-se.pdf

B523.602 I1-se

556A PBX (Manual Auxiliary for 756A PBX) - Tests and
Inspections At Time of Installation, Issue 1, 1960-04-01

pdf B556.201 I2-se Popular

2180 downloads

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B556.201_I2-se.pdf

B556.201 I2-se

756A PBX - Installation, Issue 2, 1960-04-01

pdf B523.601 I1-se Popular

2300 downloads

Download (pdf, 458 KB)

B523.601_I1-se.pdf

B523.601 I1-se

556A PBX (Manual Auxiliary for 756A PBX) - Installation, Issue 1, 1960-04-01

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

1454 downloads

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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.

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