voltage-regulated power supply
41Tube sound — (or valve sound) is the characteristic sound associated with a vacuum tube based audio amplifiers. Some audiophiles prefer the sound that is produced by the distortion characteristics of tube based amplifiers. The audible significance of tube… …
42Gas metal arc welding — RMD redirects here. RMD may also refer to IRA Required Minimum Distributions. Gas metal arc welding …
43Shorepower — (also known as cold ironing, shore power or shore supply, especially in the UK) is a power source from land used to power marine vessels when in a harbor. The term can also be applied to aircraft or land based vehicles (such as campers, heavy… …
44Battery charger — This unit charges the batteries until they reach a specific voltage and then it trickle charges the batteries until it is disconnected …
45Saturn V Instrument Unit — The Saturn V Instrument Unit is a ring shaped structure fitted to the top of the Saturn V rocket s third stage (S IVB) and the Saturn IB s second stage (S IVB). It was immediately below the SLA (Spacecraft/Lunar Module Adapter) panels that… …
46Pre-charge — of the powerline voltages in a high voltage DC application is a preliminary mode which current limits the power source such that a controlled rise time of the system voltage during power up is achieved.When high voltage systems are designed… …
47Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …
48British Rail Class 74 — Infobox Locomotive name = British Rail Class 74 powertype = Electro diesel caption = 74 003 in BR blue with full yellow ends builder = British Railways’ Doncaster Works; rebuilt BR Crewe Works builddate = 1958–1960; Rebuilt 1967–1968 gauge =… …
49Ripple (electrical) — The most common meaning of ripple in electrical science, is the small unwanted residual periodic variation of the direct current (dc) output of a power supply which has been derived from an alternating current (ac) source. This ripple is due to… …
50VRLA — stands for valve regulated lead acid and is the designation for low maintenance lead acid batteries, also called recombinant batteries. [ David Linden, Thomas B. Reddy (ed). Handbook Of Batteries 3rd Edition. McGraw Hill, New York, 2002 ISBN 0 07 …
