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Octal sockets were designed to accept octal tubes, the rib in the keyed post fitting an indexing slot in the socket so the tube could only be inserted in one orientation. When used on metal tubes, pin 1 was always reserved for a connection to the metal shell, which was usually grounded for shielding purposes.
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.
Socket connections; Octal base, (IO) Pin 1, Not used Pin 2, Heater Pin-3, Anode/plate Pin-4, Screen grid, g2 Pin-5, Control grid, g1 Pin-6, Not used Pin-7, Heater. Pin-8, Cathode-beam plates: Typical class-A amplifier operation; Anode voltage: 250V: Anode current: 140mA: Screen voltage: 250V: Bias voltage-15V: Anode resistance: 12 kilohms ...
Same Characteristics as 1B3GT. Many listed and labeled as 1B3GT/1G3GT. 1H2 – Noval High-voltage rectifier with 1.4 V/550 mA filament; 1J3GT – Octal High-voltage rectifier. Same Characteristics as 1B3GT. Has filament-plate shorting protection. Many listed and labeled as 1J3GT/1K3GT. 1K3GT – Octal High-voltage rectifier. Same ...
A vacuum tube socket with an eight-pin base; The octal, or base-8, numeral system This page was last edited on 29 ...
Special "octal" connectors with either 8 or 11 pins, almost identical to octal relay sockets or tube sockets, were used to connect power supplies to some tube audio amplifiers, transmitters, and transceivers (especially in amateur radio models). Female sockets were installed on the power supply and male sockets (with exposed pins) on the radio ...
The 6П7С (6P7S) is similar to Г-807, but with an 8-pin octal base. The 807 also found some use as a horizontal output tube in early TV receivers, particularly those manufactured by DuMont . The 807 design (with some " value engineering " to reduce production cost) was the basis for the first application-specific horizontal sweep tubes such ...
The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the 1960s. An interchangeable North American type is the 6BQ5 (the RETMA tube designation name for the EL84). The EL84 was developed to eliminate the need for a driver tube in radios, so it has rather more gain than is usual in a power pentode.