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Most post-war European thermionic valve (vacuum tube) manufacturers have used the Mullard–Philips tube designation naming scheme. Special quality variants may have the letter "S" appended, or the device description letters may be swapped with the numerals (e.g. an E82CC is a special quality version of an ECC82)
In Japan, the male sizes are often designated as DTC-20, DTC-27, DTC-40 (discontinued) and DTC-45 corresponding to a respective screw head size of 3.2 mm, 4.6 mm, 6.4 mm and 7.7 mm; with the size of the screw measured across the widest portion of the mating part of the head. The most common sizes in use for consumer electronics are DTC-20 and ...
[1] [2] Two or more elements in a single envelope were handled by adding letters after the heater identifier, in alphabetical order, so an ECH35 is a 6.3 volt heated triode plus a hexode with an octal base; a PABC80 is a Noval 300mA series-heater combination of a single low-power diode A, a pair of diodes with common cathode B, and a triode C.
The Alexander L. Kielland, a drilling rig operating in the Ekofisk gas field of the North Sea, capsized on 27 March 1980.The incident killed 123 people. The rig was owned by a Norwegian firm, Stavanger Drilling, and was chartered by Phillips Norway, a subsidiary of Phillips Petroleum Co. Survivors and relatives of the deceased sued Phillips Petroleum Co. for damages in federal court in Ohio ...
Joseph Bramah (13 April 1748 [1] – 9 December 1814) was an English inventor and locksmith. He is best known for having improved the flush toilet and inventing the hydraulic press . Along with William Armstrong, 1st Baron Armstrong , he can be considered one of the two fathers of hydraulic engineering.
The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm × 102 mm (0.787 in × 4.016 in) rounds at an extremely high rate (typically 6,000 rounds per minute).
EF50. In the field of electronics, the EF50 is an early all-glass wideband remote cutoff pentode designed in 1938 by Philips.It was a landmark in the development of vacuum tube technology, departing from construction techniques that were largely unchanged from light bulb designs. [1]
Uncapped Parker Vacumatic. The Parker Vacumatic fountain pen was launched in 1932, and would come to out-sell the Parker Duofold, the then top seller.The pen was originally marketed under the name of Golden Arrow, a reference to the new arrow clip but was again changed to Vacuum Filler in reference to its ink reservoir filling action.