Homemade electronics

Chapter 10 of the book focusses on communications technologies, leading up to how you could reinvent radio transmitters and receivers. This would of course require a certain degree of capability in handling electricity, and in particular in the construction of electronic devices. We look at the feats of ingenuity involved in the construction of POW or Foxhole radios with rudimentary means during the Second World War (see, for example, these references). This Make magazine article showcases an incredible range of electronic components that people have built from scratch at home Р everything from capacitors and diodes to headphones and even homemade cathode ray tubes (as used in old televisions).

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