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Table of Contents
Highlights
Bell Notebooks Project
Volume 1
Title Page
Opening Page to Bell's Notebooks, Volume I
Autumn 1875
Experiments with Reed Receivers and Electromagnets
Pages:
1
,
2
,
3
,
4
,
5
,
6
,
7,
8, 9, 10, 11
February 19th, 1876
Cylinder transmitter, Magnet core, Parlor-organ
Pages:
14
,
15
,
16
,
17
.
February 21st, 1876
Autograph arm based on ossicles
Page:
17
.
February 22nd, 1876
Armature/electromagnet experiments (variations on reed receiver, transmitter)
Pages:
18
,
19
,
20
,
21
,
22
,
23
,
24
,
25
,
26
.
February 23rd, 1876
Autograph style, Manometric capsule/"Flame Galvanometer," New transmitter (permanent magnet)
Pages:
27
,
28
,
29
.
February 24th, 1876
Manometric capsule experiments
Pages:
30
,
31
,
32
,
33
,
34
.
March 8th, 1876
Tuning fork experiments
Pages:
35
,
36
,
37
,
38
.
March 9th, 1876
Beginnings of speech transmission
39.
March 10th, 1876
"Mr. Watson - Come here..." and other early speech transmission. Re-experimenting with acidulated-water models, New receiver plan
Pages:
40
,
41
,
42
,
43
,
44
,
45
.
March 11th, 1876
Iron Cylinder Receiver
Page:
46
.
March 12th, 1876
The Variable-Resistance Design, Splashguard Transmitter, Phonautograph piece, Double-dip transmitter.
Pages:
47
,
48
,
49
.
March 13th, 1876
More Speech: Splashguard Variable Resistance Transmitter, Transmitted phrases
Pages:
49
,
50
,
51
,
52
.
March 14th, 1876
Automatic Transmitter, Liquid Transmitter Experiments, liquid rotation noticed, Mouthpiece faulted, New transmitter sketched
Pages:
52
,
53
,
54
,
55
,
56
.
March 15th, 1876
Decision to pursue Theory
Page:
57
.
March 20th, 1876
Theoretical Investigations re:effects of resistance on current; Ohm's law manipulations
Pages:
57
,
58
,
59
,
60
,
61
,
62
,
63
,
64
,
65
.
March 20th, 1876
Experiments on liquid transmitter / iron cylinder receiver
Pages:
66
,
67
.
March 23rd, 1876
Experiments after reading Culley: variations on the liquid transmitter
Pages:
67
,
68
,
69
,
70
,
71
,
72
.
March 24th, 1876
Experiments with Foil and Wire, alone and in transmitter
Pages:
73
,
74
,
75
,
76
,
77
,
78
.
March 27th, 1876
Transmitter and Receiver variations
Pages:
78
,
79
,
80
,
81
,
82
,
83
.
April 1st, 1876
Transmitter and receiver configurations, continued.
Pages:
83
,
84
,
85
,
86
87
.
April 2nd, 1876
Plumbago added to transmitter
Pages:
88
,
89
,
90
.
April 5th, 1876
Experiments: undulatory current confirmed superior; sparks noticed
Pages:
91
92
93
94
95
96
97
April 7th, 1876
Thoughts on Autograph Telegraph films
Pages:
98
,
99
,
100
,
April 10th, 1876
Ink tsts; speculations about circuits
Pages:
100
,
101
.
April 11th, 1876
Speech experiments: no consonants
Pages:
102
,
103
.
April 13th, 1876
Looking for good conduting ink, Plumbago experiments
Pages:
104
,
105
,
106
.
April 15th, 1876
Mixed autograph and voice notes
Pages:
106
,
107
.
Volume 1
Bell Notebooks Project
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Charles R. Twardy
ctwardy@indiana.edu