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- Top_cap abstract "In vacuum tube trechnology, a top cap is a terminal at the top of the tube envelope that connects one of the electrodes, the other electrodes being connected via the tube socket.Top caps have most commonly been used for: Amplifier or similar tube control grid connection, to provide greater circuit stability by isolating the low-signal circuit from the rest of the tube connections. Anode connection, to isolate the high-tension circuit, allowing higher voltages to be used. Physical convenience. Grid top caps on frequency converters could be connected directly to an adjacent coil; Anode top caps on output tubes could be connected by flying leads directly to an output transformer. Shorter leads generally mean greater stability. A few amplifier tubes used two top caps, symmetrically placed, one for anode and the other for grid.In audio amplifier tube application, the top cap was originally used for the grid connection, and a serviceman could apply a moist finger to the terminal to confirm that the stage and subsequent circuits were working by listening for the hum this produced in the loudspeaker. This practice led to some nasty accidents when anode top caps were first introduced to amplifier stages (they had been used on rectifiers for some time).".
- Top_cap thumbnail 6A8.JPG?width=300.
- Top_cap wikiPageID "32325621".
- Top_cap wikiPageRevisionID "482455617".
- Top_cap hasPhotoCollection Top_cap.
- Top_cap subject Category:Vacuum_tubes.
- Top_cap type Artifact100021939.
- Top_cap type Device103183080.
- Top_cap type ElectronicDevice103277771.
- Top_cap type Instrumentality103575240.
- Top_cap type Object100002684.
- Top_cap type PhysicalEntity100001930.
- Top_cap type Tube104494204.
- Top_cap type VacuumTubes.
- Top_cap type Whole100003553.
- Top_cap comment "In vacuum tube trechnology, a top cap is a terminal at the top of the tube envelope that connects one of the electrodes, the other electrodes being connected via the tube socket.Top caps have most commonly been used for: Amplifier or similar tube control grid connection, to provide greater circuit stability by isolating the low-signal circuit from the rest of the tube connections. Anode connection, to isolate the high-tension circuit, allowing higher voltages to be used. Physical convenience.".
- Top_cap label "Top cap".
- Top_cap sameAs m.0gyx593.
- Top_cap sameAs Q7824654.
- Top_cap sameAs Q7824654.
- Top_cap sameAs Top_cap.
- Top_cap wasDerivedFrom Top_cap?oldid=482455617.
- Top_cap depiction 6A8.JPG.
- Top_cap isPrimaryTopicOf Top_cap.
