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The cable connectors and sockets are keyed and colour-coded, according to the voltage range and frequency used; common colours for 50–60 Hz AC power are yellow for 100–130 volts, blue for 200–250 volts, and red for 380–480 volts.
A parts book, parts catalogue or illustrated part catalogue is a book published by a manufacturer which contains the illustrations, part numbers and other relevant data for their products or parts thereof. Parts books were often issued as microfiche, though this has fallen out of favour. Now, many manufacturers offer this information digitally ...
The following historical mnemonics are generally considered offensive/outdated and should not be used in current electronics training: Bad boys rape our young girls but Violet gives willingly.
Where two voltages are given below separated by "/", the first is the root-mean-square voltage between a phase and the neutral connector, whereas the second is the corresponding root-mean-square voltage between two phases (exception: the category shown below called "One Phase", where 240 V is the root-mean-square voltage between the two legs of a split phase).
Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2]
For example, it might not immediately be obvious whether a (hypothetical) AD108 is a 4 volt power triode or a germanium power transistor; an AZ41 (still on sale in the 1970s [12]) might be thought to be a germanium Zener diode (although, with only 2 digits for the serial number, it was not really a valid Pro Electron designation). By the time ...
The 547 was perhaps the most popular of the large size, vacuum tube type oscilloscopes. It was a single beam oscilloscope costing $1875 in 1968. The 547 was made popular largely because of the innovative "ALT" mode, which allowed for dual traces to be shown on a single beam oscilloscope, providing much of the functionality of dual-beam scopes ...
It has traditionally been published in an orange cover, hence its informal name, the Orange Book. Although the book is described as the "Definitive Rules", there have been three editions published; the first in 1978 (ISBN 0-08022-008-8), the second in 1987 (ISBN 0-63201-907-7) and the third in 1998 (ISBN 0-86542-615-5). The third edition is ...