Build Your Own Transistor Radios A do-it-yourself collection of innovative, high-quality projects for electronics enthusiasts§Build Your Own Transistor Radios pushes the envelope of DIY radio designs. Ronald Quan, an electronics engineer with more than 65 patents, pres... R Quan - 《Mcgraw Hill...
your own design or from a published design. You might choose to purchase a complete kit containing all components and detailed instructions or you may use components from the bottom of the junk-box. This is not a universally accepted definition of homebrew radio. A few amateurs will argue ...
Transistor Q1 and relay K1 are used to connect or disconnect the positive terminal of the battery being charged. Q1 is controlled by bit D5 of the parallel port. When this bit is low, the battery is disconnected; when it’s high, the battery is connected. Whereas K1 controlsifthe battery...