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Notes and References for chapter 1.
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[1] Advanced
Level Physics, M Nelkon and P Parker, 3rd edition (SI)
1974, Heinemann, London. ISBN 0 435 68636 4. Ch 32: Current Electricity. Joule's Law p790. Ch 33: Applications of Ohm's Law. Kirchhoff's Laws p827. [2] The ARRL Handbook 2000, 77th edition. ARRL publ. 1999, ISBN: 0-87259-183-2. Ch 4: Mathematics for Amateur Radio. Ch 5: DC Theory and Resistive Components. Kirchhoff's laws p5.4. [3] The physicist's definition for 'field' is: 'a quantity which can take on different values at different points in space'. Hence you can have 'temperature fields', or 'density fields', etc., but here we are interested in force fields. Temperature and density have magnitude but no direction and so are classed as scalar fields. Electric, magnetic, electromagnetic, and gravity fields have magnitude and direction, and so are classed as vector fields. [4] Elementary Particles, Enrico Fermi, Silliman memorial lecture series, Yale University Press, 1951. Definition of pseudoscalar, p9. [5] "Efficiency of Short Antennas", Stan Gibilisco W1GV, Ham Radio, Sept 1982, p18-21. Graphs of radiation resistance vs electrical length for short verticals and dipoles. Efficiency calculations. [6] "How long is a piece of wire?" J J Wiseman, Electronics and Wireless World, April 1985, p24-25. Discussion of the efficiency (or lack thereof) of electrically short verticals. The effect of top loading. [7] "RMS watt, or not?" Lawrence Woolf, Electronics World Dec 1998, p1043-1045. Why VRMS´IRMS is not RMS power. [8] Radio Designer's Handbook, Ed. Fritz Langford-Smith. 4th edition. 4th impression (with addenda), Iliffe Publ. 1957 [A later reprint exists (1967) ISBN 0 7506 36351] Section 4.6(iv): Series-parallel combinations of L, C and R. Section 4.6(v), p153: Defines inductive susceptance as positive and capacitive susceptance as negative, hence Y=G-jB. This is contrary to the more convincing derivation given by Hartshorn [17]. [9] "An unusual tuned circuit", S Chekcheyev, Electronics World Jan 2004, p41. Parallel resonant circuit: variable resistance tuning with 'constant' Q. [10] The Art of Electronics, Paul Horowitz [W1HFA] and Winfield Hill, 2nd edition 1989, Cambridge University Press. ISBN 0-521-37095-7. Tunnel (Esaki) diode p14-15, & p1060. Back diode p891, 893. [11] Physical Electronics, C L Hemenway, R W Henry, M Caulton, Wiley & Sons, New York, 2nd edn. 1967. Library of Congress cat. card no. 67-23327. Section 14.6: The tunnel diode, p290-294. [13] "When Slide Rules Ruled" Cliff Stoll, Scientific American, May 2006, p68-75. [14] "How Big is a Bad SWR?" Bob Pearson, G4FHU, Rad Com, March 1993, p64-65, April 1993, p62-63. Discussion of the effects of mismatch on power amplifiers. The greatest danger for push-pull transistor amplifiers lies in low load resistance. For a given value of SWR, the effect of low resistance is more pernicious than the effect of reactance. SWR is a poor matching criterion because it does not indicate whether the magnitude of the load impedance is too high (harmless) or too low (harmful). In the absence of meaningful load information it is best to operate with the lowest possible SWR. See also, by the same author [6-39]. [15] Data Reduction and Error Analysis for the Physical Sciences, Philip R Bevington. McGraw-Hill, 1969. Library of Congress cat. card # 69-16942. 2-2: Sample mean and standard deviation. Area under the Gaussian distribution: Table C-2, p308. [16] Radio Frequency Transistors, Norm Dye and Helge Granberg. Motorola inc. / Butterworth Heinemann, Newton MA. 1993. ISBN 0-7506-9059-3 Output impedance of a power amplifier: p118. [17] Radio-Frequency Measurements by Bridge and Resonance Methods, L. Hartshorn (Principal Scientific Officer, British National Physical Laboratory), Chapman & Hall, 1940 (Vol. X of "Monographs on Electrical Engineering", ed. H P Young). 3rd imp. 1942. Ch. I, section 3: Defines Admittance as Y=G+jB, hence BL=-1/wL and BC=wC. [BR230 Appendix A] The Decibel and the Neper. (Extract from the Admiralty Handbook of Wireless Telegraphy, 1938) |
© D W Knight 2007.
David Knight asserts the right to be recognised as the author of this work.
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