44 pages. 6-part series published in Electrical Engineering and Telephone Magazine, vol. 12-13, August 1898 - January 1899. Contributed by Karl Brose. Bookmarked by Paul Fassbender.

    I. Party Lines
    II. Party Lines
    III. Selective Signaling "Step by Step"
    IV. Strength and Polarity Systems
    V. Strength and Polarity Systems - continued
    VI. Harmonic Systems

95 pages. 5 MB Reference Book (extract).  Vol I - Theory and Elements, Part I - Introductory. Contributed by Greg Goebel. Scanned by Paul Fassbender.

CONTENTS

I - MAN’S PROGRESS IN COMMUNICATION
II - PRECURSORS OF THE ELECTRIC SPEAKING TELEPHONE - MECHANICAL TRANSMISSION OF SOUND
III - EARLY HISTORY OF THE ELECTRIC SPEAKING TELEPHONE
IV - THE TELEPHONE SYSTEM

451 pages. 29 MB Reference Book.  Vol II - Manual Switching and Substation Equipment. Contributed by Greg Goebel. Scanned by Paul Fassbender.

CONTENTS

PART I SUBSTATION EQUIPMENT

I - TALKING APPARATUS
II - SIGNALING APPARATUS FOR SUBSCRIBERS’ SETS
III - TELEPHONE SYMBOLS AND CIRCUIT DIAGRAMS
IV - SUBSCRIBERS’ SETS
V - INDIVIDUAL AND PARTY LINES

PART II MANUAL SWITCHBOARDS

VI - COMPONENT APPARATUS OF MANUAL SWITCHBOARDS
VII - NON-MULTIPLE MAGNETO SWITCHBOARDS
VIII - CURRENT SUPPLY IN COMMON-BATTERY EXCHANGES
IX - NON-MULTIPLE COMMON-BATTERY SWITCHBOARDS
X - GENERAL FEATURES OF MULTIPLE-SWITCHBOARD PRACTICE
XI - MULTIPLE SWITCHBOARDS
INDEX

Contributed and scanned by Steve Cichorsky. Processed by Paul Fassbender.

26 MB Reference Book.  Volume 3 - Automatic Switching and Auxiliary Equipment.  Contributed by Sam Etler.

TABLE OF CONTENTS (TOC)

PART I AUTOMATIC SWITCHING EQUIPMENT

CHAPTER I   THE MACHINE-SWITCHING IDEA
CHAPTER II  CONTROL DEVICES AND NUMBERING PLANS
CHAPTER III THE STROWGER STEP-BY-STEP SYSTEM
CHAPTER IV  THE PANEL DIAL SYSTEM
CHAPTER V   THE ROTARY AUTOMATIC TELEPHONE SYSTEM
CHAPTER VI  THE ALL-RELAY AUTOMATIC SYSTEM

PART II AUXILIARY EQUIPMENT

CHAPTER VII  POWER PLANTS
CHAPTER VIII PROTECTIVE APPARATUS
CHAPTER IX   DISTRIBUTING FRAMES
CHAPTER X    PRIVATE BRANCH EXCHANGES
CHAPTER XI   TOLL SWITCHING

INDEX

188 pages.