Iams Iconoscope 1933

Harley Iams

"An Outline of Iconoscope Development between April 1930 and October 1933"

1	Harley Iams, "An Outline of Iconoscope Development between April 1930 and October 1933 (Confidential)," October 23, 1933
2	Foreword
2	Types of Cathode Ray Tubes for Transmission of Television Programs
8	Iconoscope
9	Insulation
12a	Figure 3: Characteristic of Aluminum Oxide Film
12b	Figure 4: Current through Aluminum Oxide as a Function of Time
13a	13a Figure 5: Characteristic of Tantalum Oxide
17	Ways of Making the Mosaic
22	Ways of Making the Signal Plate
24	Collector of Secondary Emission
25	Electron Guns
28	Deflection Methods
29	Choice of Dimensions
32	Construction of an Iconoscope
39	Photo-Electric Emission
41	Secondary Emission
41a	Figure 9: Saturation Currents from Mosaic Figure 10: Secondary Electrons per Primary Electron
42a	Figure 11: Equilibrium Voltage of Mosaic Iconoscope 162 Figure 12: Equilibrium Voltage of Mosaic Iconoscope 190
42b	Figure 13: Equilibrium Voltage of Mosaic Iconoscope 103
47	Two-Sided Mosaics
49	Spurious Signals
57	Effect of Gas in the Tube
58	Iconoscope Characteristics
59a-b	Figures 16-18: Proportionality of Signal to Light Iconoscope No. 61
59c	Figure 19: Photo-Sensitivity of Iconoscope No. 61
62	Circuits
66	Appendix [RCA Victor notebook sources, by number]

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