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The B7G (or "small-button" or "heptal") seven-pin miniature tubes are smaller than Noval, with seven pins arranged at 45-degree spacing in a 9.53 mm (3/8th inch) diameter arc, the "missing" pin position being used to position the tube in its socket (unlike octal, loctal and rimlock sockets). Examples include the 6AQ5/EL90 and 6BE6/EK90.
These tubes have very similar characteristics to the 6V6, but differ either in the heater rating, or use a different socket and pin-out 5V6GT - Same as the 6V6GT, but with different heater ratings - 4.7V, 0.6A, controlled 11 sec. warm-up time.
Designed to run on the existing 125 W (240 V) series ballast but with a different gas fill and operating voltage, the tube operated at only 100 W. Increased efficiency meant that the tube produced only 9% lumen reduction for a 20% power reduction. [7] This first energy-saving tube design remains a T12 tube even today.
This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices , thousands of tube types were used in consumer electronics.
RCA 6DS4 "Nuvistor" triode vacuum tube, ca. 20 mm high and 11 mm in diameter Nuvistor with U.S. dime for scale. The nuvistor is a type of vacuum tube announced by RCA in 1959. . Nuvistors were made to compete with the then-new bipolar junction transistors, and were much smaller than conventional tubes of the day, almost approaching the compactness of early discrete transistor casi
A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...
In the case of a CRT, the second figure group indicates the type of phosphor the tube face was coated with. Optional letters: A, B, C Improved backward compatible versions; E Export version; G Glass bulb, Shouldered Tube ST-12 to ST-16 size; GT Glass bulb, T-9 size (actually 'Glass Tubular') GT/G Glass bulb, T-9 size interchangeable with G and ...
The yellow P+N+E, 4h (120°) plug is a single phase connector that is in widespread use on the British Isles for 110 V building site and fairground applications. A popular model of this socket type is marketed under the brand name MK Commando [12] which leads some users to refer to all IEC 60309 sockets by the generic trademark Commando sockets.