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PLATE - The part of the vacuum tube that has high voltage on it. Except in a cathode follower circuit, the output is always taken from this part of the tube. PLATE VOLTAGE - The voltage that is applied to the plate of a vacuum tube. Higher voltages give more headroom and high end; lower voltages give more breakup and a "browner" tone.


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The very first electronic device capable of amplifying a signal — the vacuum tube or "valve" as it is known in the United Kingdom — was invented by John Ambrose Fleming (1905) and then enhanced by Lee de Forest (1906) during some heady years in physics.


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Vacuum tubes generally require separate low-voltage (6V to 12V) and high-voltage (100V to 250V) power supplies. The low-voltage supply is for the tube's heater, which literally heats the tube to a temperature at which electrons will flow. High voltage is applied to the plate or anode, which attracts that flow of electrons. These voltages can.


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Tubesteader is creating high-quality guitar effect pedals featuring vacuum tubes operating at a high voltage. Meticulously designed and hand-built in Canada, Tubesteader pedals are based on the preamp section of the most thought-after tube amps. This results in a very close re-creation of their authentic sound.


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The medical magnetron shown here, manufactured by e2v Technologies (now Teledyne e2v), generates a peak power of 2.6 MW, with an average power of 3 kilowatts and an efficiency of more than 50 percent. Just 37 centimeters long and weighing about 8 kilograms, it's small and light enough to fit the rotating arm of a radiotherapy machine. Gyrotron


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As with any vacuum tube, there is a cathode, which emits electrons into the vacuum and an anode to collect the electrons, thus establishing a flow of electrical current, known as the beam, through the tube. A high voltage power source, for example 30 to 150 kilovolts (kV), called the tube voltage, is connected across cathode and anode to.


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Description: • Use with Hastings DV-6 or VRC gauge tubes • Ranges from 10 -5 Torr to 2 atmospheres • Analog output for PLC or computer interface These active vacuum switch/transmitters provide an inexpensive and straightforward way to control your vacuum Signal Output: Analog Voltage Supplier Catalog Go To Website View Specs


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What you should know about high voltage tubes such as 845, 211 and 805 Some precautions about using high voltage power tubes: Unlike other vacuum tubes such as KT88 or EL34, which typically run at 450V plate voltage, high voltage power tubes such as 845, 805 and 211 run at plate voltage 900V or even higher depending on your amp design.


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The first obvious effect from too-high heater voltage is that the cathode gets hotter and the emissive material will be reacting faster and evaporating quicker, lowering the tube's effective life span.


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A vacuum tube, electron tube, [1] [2] [3] valve (British usage), or tube (North America), [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.


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Single triode vacuum tube on the left, note its tubular structure. The 12AX7 middle and right is a dual triode tube--two tubes in one. Pin 1 connects to the Plate (output), Pin 2 the Grid (input), Pin 3 the Cathode (source of electrons).. Rectifier Tubes. High voltage AC flows onto the plates connected to pins 4 & 6. High voltage DC current.


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In a modern traveling-wave tube, the beam power that is not converted to RF is recovered by the depressed collector, which acts like the regenerative brakes on a hybrid car and boosts the overall efficiency to 65 percent or more.


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An automotive ignition coil is a special-purpose high-voltage transformer used in car engines to produce tens of thousands of volts to fire the spark plugs. In this experiment, it is used (very unconventionally, I might add) as an impedance-matching transformer between the vacuum tube and an 8 Ω audio speaker.


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Welcome to the new and improved Vacuum Tubes, Inc. website! We have added a shopping cart for easier ordering and an improved search feature. We specialize in new-old-stock tubes and offer high quality tubes, sockets, capacitors, and other parts. Owner Jim Cross and his knowledgeable staff continue to offer the same great expertise and service.


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Overdriving Vacuum Tubes And Releasing The Magic Light Within 53 Comments by: Dan Maloney July 15, 2021 We've all seen electronic components that have been coaxed into releasing their small.