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Tube sockets were typically mounted in holes on a sheet metal chassis and wires or other components were hand soldered to lugs on the underside of the socket. In the 1950s, printed circuit boards were introduced and tube sockets were developed whose contacts could be soldered directly to the printed wiring tracks.
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.
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 ...
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 ...
Print/export Download as PDF; Printable version; ... Octal base may refer to: A vacuum tube socket with an eight-pin base; The octal, or base-8, numeral ...
The EL34 is a thermionic vacuum tube of the power pentode type. The EL34 was introduced in 1955 by Mullard, who were owned by Philips. [1] The EL34 has an octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits; it was also designed to be suitable as a series regulator by virtue of its high permissible voltage between ...
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.
10–19 – Y8A 8-pin steel tube base, aka "German metal octal" 20–29 – Loctal B8G; some octal; some 8-way side contact (exceptions are DAC21, DBC21, DCH21, DF21, DF22, DL21, DLL21, DM21 which have octal bases) 30–39 – International Octal (IEC 67-I-5a), also known as IO or K8A; 40–49 – Rimlok (Rimlock) B8A All-glass miniature tubes