electronics, cathode bias (also known as self-bias, or automatic bias) is a technique used with vacuum tubes to make the direct current (dc) cathode voltage...

A cathode is the electrode from which a conventional current leaves a polarized electrical device such as a lead-acid battery. This definition can be...

appropriate voltage source. Cathode bias (self-bias, automatic bias) - The voltage drop across a resistor in series with the cathode is utilized. The grid circuit...

A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a...

isolated from their cathodes, used cathode biasing, avoiding the need for a separate negative power supply. For cathode biasing, a relatively low-value...

of the bias voltage, corresponding to an unmodulated carrier peak voltage of half the bias voltage magnitude. Either fixed bias or cathode bias may be...

as hot cathodes. However, cold cathode tubes have cathodes that emit electrons only due to the large voltage between the electrodes. The cathodes will be...

be avoided with the use of RF sputtering where the sign of the anode-cathode bias is varied at a high rate (commonly 13.56 MHz). RF sputtering works well...

with two electrodes, a heated cathode and a plate, in which electrons can flow in only one direction, from the cathode the to plate. Among many uses,...

the positive terminal corresponds to reverse bias. If a diode is reverse-biased, the voltage at the cathode is comparatively higher than at the anode. Therefore...

heater supply via a 220 ohm resistor or from the audio output valve's cathode bias. Some reel-to-reel tape recorders also used the DM70/DM71 to indicate...

both adapted to increase the voltage the devices can withstand in reverse bias. The top structure uses a mesa to avoid a sharp curvature of the p+-region...

discharges are used as a source of light in devices such as neon lights, cold cathode fluorescent lamps and plasma-screen televisions. Analyzing the light produced...

control the electron flow from the heated cathode to the positively charged anode Tape bias (also AC bias), a high-frequency signal (generally from 40...

the anode and also required 1.1 volts for the filaments, as well as a cathode bias for the filaments that enables or disables the display of a character...

designed to generate 26 watts at an 8-ohm impedance load, and offered a cathode-based bias.[citation needed] From 1952 through the spring of 1954, Fender produced...

can use metallic lithium for the anode and oxides or sulfides for the cathode, increasing energy density. The solid electrolyte acts as an ideal separator...

the preamplifier section; the power amplifier section used a single cathode-biased 6V6 beam power tetrode necessarily in Class A operation. The amplifier...

introduced in the summer of 1955 with a rated power output of 15 watts, cathode bias, two 6V6 output tubes, and a 5Y3 tube rectifier. The Tremolux was the...

Master Volume knob, a Standby and a Power Switch, switchable cathode bias (Output Bias switch: "50 Hot": 33W at full power, "82 Warm": 22W at low power)...

or more in high-fidelity equipment. Grid bias is most often provided by a cathode resistor. If the cathode resistor is unbypassed, negative feedback...

6V6GT power tubes remained the same, although the bias structure was changed from cathode to fixed biasing, bringing the output power up to around 20 watts...

filament or Lanthanum hexaboride (LaB6) hot cathode with a V-shaped (or otherwise pointed) tip. This bias voltage creates a repulsive electrostatic field...

the cathode with no voltage applied at the gate, junctions J1 and J3 are forward biased, while junction J2 is reverse biased. As J2 is reverse biased, no...

or cathode if operated beyond manufacturer specifications. In a power scaling circuit, by decreasing just the B+ plate voltage, the cathode bias and...

maximum gain. Bias stability and independence from variations in device parameters can be improved by negative feedback introduced via cathode/emitter resistors...

junction J1and J3 are forward-biased, while J2 is reverse-biased, allowing only a small leakage current from the anode to the cathode. When the applied voltage...

emissive tip and the positively biased structure drawing the electrons out. Typical constants for Spindt type cathodes include: AFN = 3.14 x 10-8 A/V2...

indirectly heated cathode or to the negative end of a directly heated cathode, negative initial velocity grid bias is produced relative to the cathode determined...

12AX7A Preamp Valve/Tube 1 × EL84 Power Valve/Tube Single-Ended Class A Cathode Bias Design Solid State Diode Rectified Weight: 20.9 lb (9.5 kg) Dimensions:...