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The RMA Release #125 – 03 Jan.1938, Sponsored by RCA. for the 6V6 tube has led to some confusion as to the origins of the 6V6. The 6V6G but not the 6V6 is in the RCA manual RC-13 from July 1937, but the 6V6 is to be found in the 1937 tube manuals of other manufacturers, such as Raytheon.
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.
EL3G (6V6) – EL3 with an Octal base; EL5 – Power pentode, identical to AL5 except for heater ratings and to EL35 except for side-contact 8 base; EL6 – Power pentode, EL12 with a side-contact 8 base; EL8 – Power pentode, EL13 with a side-contact 8 base; EL11 – Power pentode, EL3(N) or EL33 with a Y8A 8-pin steel tube base
The 6AQ5 [1] (Mullard–Philips tube designation EL90) is a miniature 7-pin (B7G) audio power output pentode vacuum tube with ratings virtually identical to the 6V6 at 250 V. [2] It was commonly used as an output audio amplifier in tube TVs and radios. It was also used in transmitter circuits. [3]
6P1P tube manufactured by Svetlana, USSR (winged "C" logo), 1971 A comparison of Svetlana 6P1P (left), 6P1P-EV and Beijing Electron Tube Factory 6P1 (right) The 6P1P (Russian: 6П1П) is a Soviet-made miniature 9-pin beam tetrode vacuum tube with ratings similar to the 6AQ5, EL90 and the 6V6. Because of a different pinout (a 9-pin base versus 7 ...
However, many specialised Russian tubes, such as special military or transmitter tubes, do not follow the above convention. Some of the better-known Russian equivalents of West European and American tubes are the 6P14P (Russian: 6П14П ), an EL84 ; 6N8S (Russian: 6Н8С ), a 6SN7 ; and 6P3S-E (Russian: 6П3С-Е ), a version of the 6L6 .
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.
Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threaded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies. Multiple B batteries may be connected in series to provide voltages as high as 300 V DC.