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In America, with 110 V current, the MC-13S tube amplifier made by Yaqin Ling--(an actual person) makes these products essentially by hand, even though Ling's command of English (as noted below) is imperfect.
McIntosh Laboratory is an American manufacturer of handcrafted high-end [1] [2] [3] audio equipment headquartered in Binghamton, New York. [4] [5] It is a subsidiary of McIntosh Group, which in November 2024 was acquired by Bose Corporation, a fellow American audio company..
The metal tube technology utilized for the 6L6 had been developed by General Electric and introduced in April 1935, with RCA manufacturing the metal envelope tubes for GE at that time. [8] Some of the advantages of metal tube construction over glass envelope tubes were smaller size, ruggedness, electromagnetic shielding and smaller ...
A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers in the 1960s and 1970s.
Fisher tube equipment is considered quite collectible today. Fisher's first receiver was the model 500, a mono AM/FM receiver using two EL37 output tubes. It had a brass-plated face panel and an optional mahogany or "blonde" wooden case. This early mono receiver should not be confused with the later stereo tube receiver models, the 500B and ...
It is used in the power-output stages of audio amplifiers, most commonly now in guitar amplifiers, but originally in radios. 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).