| 11. |
North-Eastern Centre: Chairman's address. “The generation of electrical energy” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 61-66
W.D.Horsley,
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DOI:10.1049/jiee-1.1938.0011
出版商:IEE
年代:1938
数据来源: IET
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| 12. |
Irish Centre: Chairman's address. “The use and manufacture of peat fuel” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 67-72
K.E.Edgeworth,
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PDF (912KB)
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DOI:10.1049/jiee-1.1938.0012
出版商:IEE
年代:1938
数据来源: IET
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| 13. |
East Midland Sub-Centre: Chairman's address. “Problems of power station design during the next decade” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 73-77
D.H.Parry,
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PDF (672KB)
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DOI:10.1049/jiee-1.1938.0013
出版商:IEE
年代:1938
数据来源: IET
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| 14. |
Tees-Side Sub-Centre: Chairman's address. “The effects of the rationalization of industry on industrial distribution” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 78-83
J.H.Haws,
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PDF (908KB)
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DOI:10.1049/jiee-1.1938.0014
出版商:IEE
年代:1938
数据来源: IET
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| 15. |
Hampshire Sub-Centre: Chairman's address. “Problems in wireless communication” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 84-87
W.F.Rawlinson,
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PDF (651KB)
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DOI:10.1049/jiee-1.1938.0015
出版商:IEE
年代:1938
数据来源: IET
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| 16. |
Dundee Sub-Centre: Chairman's address. “Electricity supply, with some remarks on the position in Scotland” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 88-93
AllanGrant,
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DOI:10.1049/jiee-1.1938.0016
出版商:IEE
年代:1938
数据来源: IET
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| 17. |
Sheffield sub-centre: Chairman's address. “Load diversity on traction, power, and domestic supplies” |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 94-97
W.Fordham Cooper,
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PDF (446KB)
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DOI:10.1049/jiee-1.1938.0017
出版商:IEE
年代:1938
数据来源: IET
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| 18. |
Northern Ireland Sub-Centre: Chairman's address |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 98-100
F.H.Whysall,
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PDF (385KB)
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DOI:10.1049/jiee-1.1938.0018
出版商:IEE
年代:1938
数据来源: IET
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| 19. |
An electrical method of determining cable-sheath uniformity |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 101-104
W.E.Laycock,
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PDF (512KB)
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DOI:10.1049/jiee-1.1938.0019
出版商:IEE
年代:1938
数据来源: IET
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| 20. |
Theory and performance of the iconoscope |
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Journal of the Institution of Electrical Engineers,
Volume 82,
Issue 493,
1938,
Page 105-114
V.K.Zworykin,
G.A.Morton,
L.E.Flory,
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PDF (1254KB)
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摘要:
Field tests have shown the present standard iconoscope to be a very satisfactory television pick-up device. However, from a theoretical point of view the efficiency of the iconoscope as a storage system is rather low. The principal factors responsible for the low efficiency are lack of collecting field for photo-electrons, and losses caused by the redistribution of secondary electrons produced by the beam.Limits to the sensitivity of the standard iconoscope are set by the ratio of picture signal to amplifier and couplingresistor “noise.” Experimental and theoretical determinations indicate that an excellent picture can be transmitted with from 2½ to 6 millilumens per cm? on the mosaic.Two methods are considered by which the sensitivity may be increased. The first is by the use of secondary-emission signal-multipliers and a low-capacitance mosaic, while the second makes use of secondary-emission image intensification. The sensitivity limits for the two cases are calculated.
DOI:10.1049/jiee-1.1938.0020
出版商:IEE
年代:1938
数据来源: IET
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Volume 82 issue 493