![]() ![]() To thank the Author because you find the post helpful or well done. Perhaps if others add additional titles here, we can create such a list that is helpful for those who want to learn. ![]() I realize there are places in existing threads where these books are mentioned on RMorg, but there is no simple list of the best English radio-related books yet. ![]() Although some of us have the technical understanding to handle advanced theory literature, most people are going to be more comfortable with and learn more from a book like "Elements of Radio."īook #1 is the most commonly cited book as being helpful for practical servicing advice. I read this book when I was about 14 years old, and it really opened my eyes and brought me to a new level of understanding of theory at that time. It was written specifically to teach radio theory in a nonmathmatical manner, relying on illustrations, graphs, and discussion instead of mathmatical formulas to teach theory. "Elements of Radio" by Abraham Marcus and William Marcusīoth of these are commonly available from used book dealers such as .īook #2 above was the book that helped me the most in learning radio theory. "Elements of Radio Servicing" by William Marcus and Alex LevyĢ. While this does not directly answer his questions, we can take the opportunity to create a thread with a list of the best books available in English for radio circuitry theory and practical radio servicing knowledge.ġ. With a set of batteries installed, I started up the radio and it seemed to work great, as you can see in this video that I took.Robin Roeckers in another_thread asked about resources to help with reading schematics, identifying components under the chassis, etc. There is only one electrolytic capacitor in this set (100uF 12V, the round metal can next to the speaker) and it tested OK in-circuit, so I wasn’t going to replace it just yet. I also took this opportunity to clean all of the controls and switches with contact cleaner. The module also provides for audio input capability. This module can be installed in tube or transistor type radios, 6 or 12 volt, negative or positive ground. Battery holder installed (left), and with batteries fitted (right). FM module add-on: Installation of the FMC-1 FM module by Aurora Design that can be installed in your original radio, using its' original circuitry. The battery holder then simply clips into place, and fits into the case. Circuit board with battery flying lead replaced. I simply replaced the original fixed battery leads with a PP3 snap-in battery clip lead, by desoldering the original cables from the circuit board, and soldering in the new ones (taking care to ensure that they were installed in the correct location). Replacement battery holder versus the original. I actually managed to source a replacement battery holder with roughly the same dimensions as the original which seems to fit well into the same space, and features a standard PP3 battery connector (which is typically used on 9V cells), making it removable. It seemed to be a somewhat standard design, holding six four 1.5V AA alkali batteries in series, providing 6Vdc to the radio via a power switch. The original battery holder was pretty much irreparable, so I cut it out and threw it away. ![]() On inspection, the radio had suffered battery leakage in the past, which had left remnants in the case interior and had severely corroded the battery holder, to the point where one of the terminal cables had been eaten away completely. If you’re interested in how “superhet” radios work, “ Transistor Superhet Receivers” by none-other than Sir Clive Sinclair himself is an excellent book. We also do restoration of radios for individuals. The S-74 is a reasonably simple six-transistor superheterodyne radio receiver, powered by four 1.5V AA batteries, with a channel switch and an internal antenna. At Retro Radios we take Old Valve Radios and Radiograms and restore them inside and out and fit them. Ajax Commander S-74 transistor radio before restoration. I bought it in unknown condition from a YMCA charity shop in Middlesbrough for £25.00, with its original box, user manual, warranty card, and headphone. I’ve been wanting to get into vintage radio restoration for some time now (after watching YouTube channels such as the excellent Mr Carlson’s Lab), as I find the electronics fascinating. A few months ago I bought my first ever vintage radio, a 1970s Ajax Commander S-74 “solid-state” AM/FM set, which is among the oldest items in my collection. ![]()
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