R. A. Penfold: Difference between revisions

While still a child Robert Penfold started by experimenting with amateur radio, moving on to designing and building his own designs. His first article was published in [https://en.wikipedia.org/wiki/Practical_Wireless Practical Wireless] in 1971<ref>[http://www.americanradiohistoryworldradiohistory.com/Archive-Practical/Wireless/70s/PW-1971-09.pdf Mini-Amplifier] by R. A. Penfold, Practical Wireless, Sept. 1971, p. 422</ref> and by the time he was 18 he was having articles published regularly in electronics magazines. Editors have also published his articles under pseudonyms such as A. P. Roberts, The Prof and M. V. Hastings. The author J. W. Penfold is his brother. His first book, ''Solid State Short Wave Receivers for Beginners'' was published by [[Bernard Babani (publishing) Ltd|Bernard Babani]] in October 1976. He retired from writing profesionally in September 2017.<ref name="mmag">[https://www.americanradiohistoryworldradiohistory.com/UK/Mapelin/Maplin-Electronics-1991-10.pdf Bob Penfold Interview], Electronics – The Maplin Magazine, Oct 1991, pp. 40-43</ref><ref>Everyday Practical Electronics Magazine, September 2017, p. 7</ref>