short-circuit time constant
21Test probe — Typical passive oscilloscope probe being used for testing an integrated circuit. A test probe (test lead, test prod, or scope probe) is a physical device used to connect electronic test equipment to the device under test (DUT). They range from… …
22Glossary of fuel cell terms — The Glossary of fuel cell terms lists the definitions of many terms used within the fuel cell industry. The terms in this glossary may be used by fuel cell industry associations, in education material and fuel cell codes and standards to name but …
23Low-pass filter — A low pass filter is a filter that passes low frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency. The actual amount of attenuation for each frequency varies from filter to filter …
24Battery (electricity) — For other uses, see Battery (disambiguation). Various cells and batteries (top left to bottom right): two AA, one D, one handheld ham radio battery, two 9 volt (PP3), two AAA, one C, one …
25List of The Nostalgia Critic episodes — The Nostalgia Critic is a Web review series hosted by Doug Walker. The series began in July 2007 on YouTube, but after having a large amount of his episodes removed from YouTube, those, along with new ones, started appearing in April 2008 on… …
26Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …
27Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …
28Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …
29Smith chart — The Smith Chart, invented by Phillip H. Smith (1905 1987), [Smith, P. H.; Transmission Line Calculator; Electronics, Vol. 12, No. 1, pp 29 31, January 1939] [Smith, P. H.; An Improved Transmission Line Calculator; Electronics, Vol. 17, No. 1, p… …
30Avalanche transistor — An Avalanche Transistor is a bipolar junction transistor designed for operation in the region of its collector current/collector to emitter voltage characteristics beyond the collector to emitter breakdown voltage, called avalanche breakdown… …
