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1887

Electronics & Power

Volume 23, Issue 7, July 1977

Volumes & issues:

Volume 23, Issue 7

July 1977

Focus
Mullard invests for the future
Television noise reduction system
New modem increases throughput
MRL becomes PRL
Printer in your pocket
All the fun of the fair at Leeds
Sharp and to the point
Pam finds fault with laboratory appliances
Voltmeters with micromuscle
Calibrating precisely
Ruston's double celebration
Citizen's-band synthesisers
Advanced methods of marketing
Design specialists
UK and USA in coal technology pact
Pollution watchdog
Packaged instruments
Entries wanted for Gyr and Landis prize
TXE4A exchange manufacture begins at Southgate
Norbain awarded SE franchise
Prefabricated laboratory
Specialist show
65k c.c.d. memory
Low-cost electronic ignition system
First v.m.o.s. r.a.m.
‘Elektro 77’
Electricity Council Fellowships
Characteristics of Electricity Council power-system loads
Traffic information on v.h.f.
Mag. lev. comes down to Earth
Can tachyons exist?
Oliver Heaviside
Automatically better?
Telecommunications comments
Relief for calculators
Mathematical matters
Instruments. Radiography advances in a flash
Research. University research—up in the clouds
Industry. Letting off steam
Research. TTF-TCNQ takes prize
Displays. Eyes up…
Selling instruments worldwide
Plenty of scope for growth
Energy elegy
New opportunities in broadcasting
  • Author(s): J. Redmond
  • Source: Electronics & Power, Volume 23, Issue 7, p. 547 –551
  • DOI:  10.1049/ep.1977.0314
  • Type: Article
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  • p. 547 –551 (5)
    A new frequency-assignment plan for broadcasting in the long and medium wavebands will be implemented in 1978. An international conference met in January 1977 to prepare a plan for satellite broadcasting direct to the home, and in 1979 there is to be another conference to review all uses of the radio-frequency spectrum. Meanwhile, the technology is developing rapidly. How best can the broadcaster take advantage of these factors to improve his services to the public?
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Plutonium—should we or shouldn't we?
Doppler m.l.s. — the landing guidance system for the future
  • Author(s): J.G. Flounders
  • Source: Electronics & Power, Volume 23, Issue 7, p. 556 –558
  • DOI:  10.1049/ep.1977.0316
  • Type: Article
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  • p. 556 –558 (3)
    A new landing-guidance system is to be selected from a choice of three by the International Civil Aviation Organisation in the next year. The US/Australian system recently won a 6 to 4 vote approval from a panel set up to assess technically the three systems; but, the other two competitors, the UK and W. Germany, objected and obtained a deferment of the final decision. But what claim has the British system to acceptance?
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Waveguide systems
Microwave antennas
Propagation factors in millimetre-wave radio-system design
Magnetising and magnet-calibrating power supplies
  • Author(s): C.F. Amor
  • Source: Electronics & Power, Volume 23, Issue 7, p. 573 –576
  • DOI:  10.1049/ep.1977.0320
  • Type: Article
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  • p. 573 –576 (4)
    In the last few years, the rare-earth permanent-magnet materials have found increasing application, as they have become avaliable economically, because of their high coercivity and energy product (BH max). However, these very desirable characteristics create additional difficulties in processing the magnets. One of the rare earths, samarium cobalt, is now becoming well established in a number of applications. One of these is in microwave tubes, in particular travelling-wave tubes. The equipment now used to magnetise, calibrate and measure permanent magnets is described with particular reference to rare-earth samarium cobalt as used in travelling-wave tubes
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Continued progress reported at electric-vehicle conference
Transport without Wheels
Vector Fields
Coupling of External Electromagnetic Fields to Transmission Lines
International Conference on Electricity Distribution
Catastrophic Failures
A Guide to Systems Engineering and Management
Practical Digital Design using ICs
Case Studies in Ergonomic Practice. Vol. 1: Human Factors in Work, Design and Production

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