Old-Time Telephones!: Restoration and Repair Book

	Foreword
	Acknowledgments
	Introduction
Pt. 1	Development of components
1	Early developments and the Bell patent	3
2	Transmitters	13
3	Receivers	25
4	Induction coils	33
5	Magnetos	39
6	Ringers	45
7	Switches and dials	55
Pt. 2	Telephone instruments
8	Early commercial telephones	65
9	Single-box magneto wall phones	73
10	Candlestick desk stands	83
11	Handset desk stands	89
12	Ringer boxes, subsets, and compact wall phones	97
13	Combined telephones of the 1930s and 1940s	107
14	Standard dial and touch-tone telephones	119
Pt. 3	Electrical circuits
15	The standard local-battery circuit	135
16	Early common-battery circuits	149
17	Common-battery, anti-sidetone circuits	165
18	The local-battery, anti-sidetone circuit	185
19	Network circuits	199
Pt. 4	Restoration and repair
20	Mechanical restoration	225
21	Tests and measurements	235
22	Electrical repair and modification	245
	Appendix: Fundamentals and conventions	263
	Bibliography	279
	Index	283