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The company also designed and made other electronic instruments such as signal generators, valve (vacuum tube) testers and valve characteristic meters and specialist equipment for radio servicing. Many of these were intended for both military and commercial use and were made to a very high standard.
A Mullard TDD4 valve. The gold spray coating served no purpose other than to hide the blackened interior, as Mullard valves were still manufactured using the azide process, long abandoned by other makers. [1] A Mullard EL34 power pentode An EL84 valve made in Russia in the 21st century. Mullard Limited was a British manufacturer of electronic ...
The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...
Miessner's patent from 1938 [3] [4] marks the birth of the electronic wind instrument family. [5] Early experiments with fully electronic instruments started in the 1940s. Leo F. J. Arnold invented an electronic clarinet that featured an on/off-switch controlled by the human breath. This instrument is documented in Arnold's patent from 1942. [6 ...
The EWI 5000 and EWI USB also have an electronic valve instrument (EVI) fingering mode that allows brass players to play the EWI. [8] Like a straight soprano saxophone or clarinet, the EWI is straight with a slight inward bend a few inches below the mouthpiece, and it is held in front of the body with a neck strap. Dayna Stephens with an EWI 4000s
Tuning pegs with knobs on a veena.. Tapered pegs are a simple, ancient design, common in many musical traditions. Tapered pegs are common on classical Indian instruments such as the sitar, the Saraswati veena, and the sarod, but some like the esraj and Mohan veena often use modern tuning machines instead.
Jennings' first successful product was the Univox, an early mains powered electronic keyboard with built-in valve amplifier and loudspeaker, similar to the Clavioline. There is some debate over whether the Clavioline or Univox was used in the song Telstar , but many think that it was the latter.
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.