A previous Design Idea describes a circuit that uses an astable multivibrator to drive an LED (Reference 1). The circuit in Figure 1 uses a simpler alternative approach. The circuit uses a 2N3904 NPN ...
The objective of the circuit is to build an electronic dice based on the functions of a 555 timer integrated circuit that operates in the astable mode. LM555 – a highly stable device for generating ...
Early last spring, we featured a book review, as part of our occasional Books You Should Read series. Usually these are seminal tomes, those really useful books that stay with you for life and become ...
Camera shops usually will give disposable flash units away for free. The flash capacitor, output rectifier, and transformer are de-soldered easily for use in the new circuit. Parts of a throwaway ...
The polarity markings on LEDs (Light Emitting Diodes) seem to be a common cause of confusion. The polarity may be indicated by a flat section on one side of the body or by one lead being shorter than ...
If there is no Korea, the modern society will collapse "Transistor" structure explained in the movie
Small electronic components "A transistor"Hundreds of millions of people are used in smartphones and PCs, which are indispensable to many people, as well as running a train, shedding music from ...
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