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The term All American Five (abbreviated AA5) is a colloquial name for mass-produced, superheterodyne radio receivers that used five vacuum tubes in their design. These radio sets were designed to receive amplitude modulation (AM) broadcasts in the medium wave band, and were manufactured in the United States from the mid-1930s until the early 1960s.
Enhanced Small Disk Interface (ESDI) is a hard disk drive interface designed by Maxtor Corporation in 1983 to be a follow-on to the ST-412/506 interface. [1] ESDI improved on ST-506 by moving certain parts that were traditionally kept on the controller (such as the data separator) into the drives themselves, and also generalizing the control bus such that more kinds of devices (such as ...
Octal bases, as defined in IEC 60067, [10] diagram IEC 67-I-5a, have a 45-degree angle between pins, which form a 17.45 mm (11 ⁄ 16 in) diameter circle around a 7.82 mm (5 ⁄ 16 in) diameter keyed post (sometimes called a spigot) in the center. Octal sockets were designed to accept octal tubes, the rib in the keyed post fitting an indexing ...
6V6 Octal socket basing diagram. 1 - * Unconnected in all versions except for the shell connection of the metal 6V6 2 & 7 - Filament / Heater 3 - Anode / Plate 4 - Grid 2 / Screen Grid 5 - Grid 1 / Control Grid 6 - No connection. Pin normally absent 8 - Cathode & Beam-Forming Plates. The 6V6 is a beam-power tetrode vacuum tube.
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The larger diameter of the head tube and headset gives added stiffness to the steering portion of the bicycle. Common sizes. 25.4 mm (1 in) steerer tube, this may have a fork crown (the base of the fork steerer tube) of a number of different dimensions, and milling may be necessary to make some headsets fit. 26.4 mm crown race (ISO standard)
Vacuum tube SRA-7S 1966 2x Normal Bias Vacuum tube SRA-8S 1967 350 V 2x Normal Bias Vacuum tube SRA-3S 1968 279 V 2x Normal Bias Vacuum tube / Solid state hybrid SRA-10S 1974 2x Normal Bias Solid state SRA-12S 1977 350 V 5x RCA 2x Normal Bias, 2x RCA Solid state SRM-1 1979 370 V 1x RCA, 2x Normal Bias Solid state SRM-1 Pro 1981 370 V 1x RCA,
600 series connectors. A 600 series connector is an obsolete three-pin connector with up to six conductors.. It was for many years the standard telephone service connector in Australia, used on rural party lines and the national Postmaster-General's Department (later Telstra) landline network, but has since the 1970s been superseded by the six position modular connector in this application.