Contributed by Steve Cichorsky.

2 pages. ID concealed or bunched wires using 38A, 81A or 66A test sets.

Contributed by Chuck Hensley.

Scanned and contributed by Paul Wills

March 36.  Includes 553, 333, 653, 433 and 633 sets.  Covers sidetone and anti-sidetone common battery connections for individual lines, two-party selective flat rate, two-party selective message rate, four-party seni-selective, divided code ringing, non-selective party lines and regular PBX stations.  Includes 553, 333, 653, 433 and 633 sets. (Wiring Diagrams.)

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May 45.  Includes 553C, 653BC, and 653CE sets.  Covers sidetone and anti-sidetone common battery connections for two-party selective message rate service. (Wiring Diagrams.)

May 41. Includes 533 and 653 sets.  Covers sidetone and anti-sidetone common battery connections for individual lines, two-party selective flat rate, two-party selective message rate, four-party seni-selective, divided code ringing, non-selective party lines and regular PBX stations.  Includes 553, 333, 653, 433 and 633 sets. (Wiring Diagrams.)

November 1943.  Code ringing data for party lines.  Includes 10 & 20 party ringing.  Contributed by Steve Cichorsky.

Feb 37. New York Tel. Sidetone and anti-sidetone connections for Individual line, two-party selective message rate and PBX stations.  Includes 101, 102, 201, 202, 211, 215, and 213. Contributed by Steve Cichorsky.

July 54. "Connections in the interior of handsets."  Includes E1D, E1E, E2A, E2B, E2C, F1A, F1B, F1C, F1E, F1G, F2A, F2B, F2C, F2E, F3B, F3F, F3H, F3J, F3K, F3L, F3M, F3N, F3P, F3WW, F4A, F4B, F5A, F6A, G1A, G2A, G2B, G3A, And G4A.

March 37.  Sidetone and anti-sidetone common battery desk stand connections for individual lines, two-party selective flat rate, two-party selective message rate, four-party semi-selective, four-party selective, eight-party semi-selective, non-selective party line, divided code ringing and regular PBX stations.  Includes 40CM, 20CM, 40AL, 20AL, 50CM, 50AL, 51CM, 51AL, 52AB, 151AL, 152AB, 140AL, 120AL, 151R, and 51AL .

June 1945.  Shows tip party connections.  Includes 51C Sidetone Desk Stand w/554C Sub. Set, 50C Sidetone Desk Stand w/554C Sub. Set, 151C Anti-Sidetone Desk Stand w/634BC or 684BC Sub. Set, and 151R Anti-Sidetone Desk Stand (rewired) w/634CE Sub. Set.

Sep 45. 303 type sets are used in wiring plans and 1A KTS employing seperately mounted switching keys and cut-off keys. (Wiring Diagrams.)

Issue 1, Oct 1948. Wiring Diagrams.

June 37.  Jacks: 190 A, 367, 388-A, 389-A, 391-A, 392-A, 403-A, 404-A.  Plugs: 148, 273-A, 274-A, 283-A.

July 38.  (Ref. C42.111.)

Contributed by Chuck Hensley.

Contributed by Chuck Hensley.