Effects of applied voltages and dissolved oxygen on sustained
... contamination. Facultative bacteria could use oxygen in the anode chamber as electron accepter, and not transfer ...
... contamination. Facultative bacteria could use oxygen in the anode chamber as electron accepter, and not transfer ...
Operating Instructions
... This equipment operates at voltages as high as 3400 VAC. Always use the 3 wire line cord, plugged into a properly grounded outlet. The equipment should always be operated in accordance with the operating instructions. ...
... This equipment operates at voltages as high as 3400 VAC. Always use the 3 wire line cord, plugged into a properly grounded outlet. The equipment should always be operated in accordance with the operating instructions. ...
a single layer biofuel cell as potential coating for implantable low
... operated at lower glucose concentrations. To evaluate the magnitude of the here obtained differences in anode potential we calculated corresponding fuel cell voltages. A single layer biofuel cell cathode has an open circuit potential of 250 mV at 7 % oxygen saturation (see Fig. 5). When the anode is ...
... operated at lower glucose concentrations. To evaluate the magnitude of the here obtained differences in anode potential we calculated corresponding fuel cell voltages. A single layer biofuel cell cathode has an open circuit potential of 250 mV at 7 % oxygen saturation (see Fig. 5). When the anode is ...
phys586-lec05
... Grid frequency of 60 lines / cm is typical B/W/H on the figure might be 0.045, 0.120, 1.20 in mm The Bucky factor is the entrance exposure w/wo the grid while achieving the same film density – 4 is average ...
... Grid frequency of 60 lines / cm is typical B/W/H on the figure might be 0.045, 0.120, 1.20 in mm The Bucky factor is the entrance exposure w/wo the grid while achieving the same film density – 4 is average ...
- Eddystone User Group
... control grid of V2. This in turn will cause the valve to draw more current from the high tension supply. As this is already a power stage taking from about 20 to 50 milliamps it soon starts to get hot under the collar. But let us pause just there and describe the circuitry around this output stage, ...
... control grid of V2. This in turn will cause the valve to draw more current from the high tension supply. As this is already a power stage taking from about 20 to 50 milliamps it soon starts to get hot under the collar. But let us pause just there and describe the circuitry around this output stage, ...
High-Brightness, High-Current-Density Cathode for Induction Linac
... redisplayed on a video monitor. The diode voltage for these data was 106 kV and the space charge limited current 436 A. The images of the individual holes are well separated, and there is no apparent elongation in the radial direction from energy variations since the camera gate pulse is short (5 ns ...
... redisplayed on a video monitor. The diode voltage for these data was 106 kV and the space charge limited current 436 A. The images of the individual holes are well separated, and there is no apparent elongation in the radial direction from energy variations since the camera gate pulse is short (5 ns ...
Williamson amplifier restoration information
... about 200Ω with idle current of 40mA. Cathode above ground by ~28V from common cathode resistance 350Ω with 80mA. Plate-cathode voltage at idle is about 500-8-28 = 465V. Screen supply VS6 is regulated to 300V for screen currents below 20mA. Screen voltage at idle will be lower than VS6 by about 19V; ...
... about 200Ω with idle current of 40mA. Cathode above ground by ~28V from common cathode resistance 350Ω with 80mA. Plate-cathode voltage at idle is about 500-8-28 = 465V. Screen supply VS6 is regulated to 300V for screen currents below 20mA. Screen voltage at idle will be lower than VS6 by about 19V; ...
LEP 5.4.10 X-ray dosimetry
... and counter tube holder without counter tube are to be turned to 90 °. The capaciter plates are inserted after this step has been completed. For safety reasons, the controlling devices for counter tube and crystal holder are disconnected when inserting the capacitor plates. The circuit-diagram is as ...
... and counter tube holder without counter tube are to be turned to 90 °. The capaciter plates are inserted after this step has been completed. For safety reasons, the controlling devices for counter tube and crystal holder are disconnected when inserting the capacitor plates. The circuit-diagram is as ...
Heathkit SB200 Mods/SB-200 Modifications
... These («fig) are so small that could be installed below the chassis. The space where the old elecrolytics had been would then be available, e.g. for another filament transformer or a bigger valve. If the Bakelite PCB were removed, the full cabinet height of 155 mm would then be available. The primar ...
... These («fig) are so small that could be installed below the chassis. The space where the old elecrolytics had been would then be available, e.g. for another filament transformer or a bigger valve. If the Bakelite PCB were removed, the full cabinet height of 155 mm would then be available. The primar ...
LATCHES AND FILP FLOPS
... The Triac A triac is like a diac with a gate terminal. A triac can be turned on by a pulse of gate current and does not require the breakover voltage to initiate conduction, as does the diac. Basically, a triac can be though of simply as two SCRs connected in parallel and in opposite directions with ...
... The Triac A triac is like a diac with a gate terminal. A triac can be turned on by a pulse of gate current and does not require the breakover voltage to initiate conduction, as does the diac. Basically, a triac can be though of simply as two SCRs connected in parallel and in opposite directions with ...
chapter 4 - UniMAP Portal
... Figure 4.4: Basic circuit of controls that determine position, intensity, and focus of the electron beam on a CRT The focus control is connected to the focusing anode. The focusing and accelerating anodes form an electrostatic lens to collimate the electrons into a well defined beam. Generally, a b ...
... Figure 4.4: Basic circuit of controls that determine position, intensity, and focus of the electron beam on a CRT The focus control is connected to the focusing anode. The focusing and accelerating anodes form an electrostatic lens to collimate the electrons into a well defined beam. Generally, a b ...
POWER AMPLIFIERS with valves
... from the grid and fewer pass. The negative biasing turns to some degree the valve off and bias is normally in small signal stages achieved by the cathode resistor. A current through the valve causes a voltage drop over the cathode resistor and so the cathode becomes positive with respect to ground. ...
... from the grid and fewer pass. The negative biasing turns to some degree the valve off and bias is normally in small signal stages achieved by the cathode resistor. A current through the valve causes a voltage drop over the cathode resistor and so the cathode becomes positive with respect to ground. ...
Stream Barge Electrofishing Systems
... for cord/connector strain relief Optional cord reels are black non-conductive plastic, with heavy-duty retractor spring, removable from barge brackets, and angle adjustable – Cord locks automatically at 3-4’ intervals, but retracts when pulled and then released Tow-style barge is standard – Rear pus ...
... for cord/connector strain relief Optional cord reels are black non-conductive plastic, with heavy-duty retractor spring, removable from barge brackets, and angle adjustable – Cord locks automatically at 3-4’ intervals, but retracts when pulled and then released Tow-style barge is standard – Rear pus ...
multiplexing 7 segment display using pic microcontroller
... use current limiting resistors in series with each LED segment to avoid such damages. The segment is light up only when both a LED segment and its associated common lead (either anode or cathode) are selected. Multiplexing is necessary to interface two or more seven segment displays to a microcontro ...
... use current limiting resistors in series with each LED segment to avoid such damages. The segment is light up only when both a LED segment and its associated common lead (either anode or cathode) are selected. Multiplexing is necessary to interface two or more seven segment displays to a microcontro ...
- Emicro Technologies
... ac power-electronics based power system. The added series filter capacitor helps to withstand most of the system voltage, hence allowing a lower rated converter to be used for implementing the active damper. Unlike an active power filter for mitigating low-frequency harmonics, the proposed damper da ...
... ac power-electronics based power system. The added series filter capacitor helps to withstand most of the system voltage, hence allowing a lower rated converter to be used for implementing the active damper. Unlike an active power filter for mitigating low-frequency harmonics, the proposed damper da ...
A 36-inch Surface-conduction Electron-emitter Display (SED)
... consisting of cathode plate, anode plate and thin spacers, which allow the panel vacuum structure to be sustained under atmospheric pressure. Thin spacers are placed on the printed wires to avoid disturbing the electron paths. The cathode plate and anode plate are sealed by frit glass and a low melt ...
... consisting of cathode plate, anode plate and thin spacers, which allow the panel vacuum structure to be sustained under atmospheric pressure. Thin spacers are placed on the printed wires to avoid disturbing the electron paths. The cathode plate and anode plate are sealed by frit glass and a low melt ...
Thyrsitor part 2 (697344)
... The concept of 4-layer devices is usually shown as an equivalent circuit of a pnp and an npn transistor. Ideally, these devices would not conduct, but when forward biased, if there is sufficient leakage current in the upper pnp device, it can act as base current to the lower npn device causing it to ...
... The concept of 4-layer devices is usually shown as an equivalent circuit of a pnp and an npn transistor. Ideally, these devices would not conduct, but when forward biased, if there is sufficient leakage current in the upper pnp device, it can act as base current to the lower npn device causing it to ...
General Guidance Notes on the Use of Vacuum Tubes
... for tubes above 20 kW output power Upon receipt the most likely damage to the tube is caused by transit. When shock indicators are fitted these should not be displaced. If they are, a provisional transit damage claim should be filed with the insurers and e2v technologies informed. It has been found ...
... for tubes above 20 kW output power Upon receipt the most likely damage to the tube is caused by transit. When shock indicators are fitted these should not be displaced. If they are, a provisional transit damage claim should be filed with the insurers and e2v technologies informed. It has been found ...
MODEL 61800 SERIES Regenerative Grid Simulator Key Features
... up to 300VAC at output frequencies ranging from 30Hz to 100Hz. The AC+DC feature allows for applications which require a DC offset bias. The 61800 series is also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, current crest factor and many others. B ...
... up to 300VAC at output frequencies ranging from 30Hz to 100Hz. The AC+DC feature allows for applications which require a DC offset bias. The 61800 series is also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, current crest factor and many others. B ...
pat2817708_fender.pdf
... When the plug 85, as assumed, is plugged into the jack 87, the short-circuiting switch $3, normally connected that two different types of signals may be applied to the across the secondary winding, is opened. 20 control grid of tube 10; and the tone of such signals The audio oscillator 14, for obtai ...
... When the plug 85, as assumed, is plugged into the jack 87, the short-circuiting switch $3, normally connected that two different types of signals may be applied to the across the secondary winding, is opened. 20 control grid of tube 10; and the tone of such signals The audio oscillator 14, for obtai ...
DC Regulated Power Supply
... Figure 5 shows the picture of the final stage of the amplifier system. The parameters for the matching networks have been calculated and the analysis of this amplifier has been carried out using ABCD parameters method. It uses a linear small-signal AC model of the triode with its matching circuits. ...
... Figure 5 shows the picture of the final stage of the amplifier system. The parameters for the matching networks have been calculated and the analysis of this amplifier has been carried out using ABCD parameters method. It uses a linear small-signal AC model of the triode with its matching circuits. ...
... nected as shown. In order to preserve the high any signal I9 will cause an increase in the nega frequency components comprising the square wave 30 tive bias applied to the tube II. Further details form shown at 2, the resistors in the input and of the operation of the voltage measuring devices outpu ...
The e/m ratio - FSU
... The Apparatus The electron trajectories will be measured in a vacuum tube which contains some hydrogen gas. Some of the electrons excite the hydrogen gas molecules and make the electron trajectory visible. The ionized gas emits a faint blue light which can easily be seen with the lights off. The pres ...
... The Apparatus The electron trajectories will be measured in a vacuum tube which contains some hydrogen gas. Some of the electrons excite the hydrogen gas molecules and make the electron trajectory visible. The ionized gas emits a faint blue light which can easily be seen with the lights off. The pres ...
Generation of X-Rays
... Although the x-ray exposure technique (mA and exposure time or the mAs) can be manually set, phototimers help provide a consistent exposure to the image receptor. Ionization chambers produce a current that induces a voltage difference in an electronic circuit. Tech chooses kVp; the x-ray tube curren ...
... Although the x-ray exposure technique (mA and exposure time or the mAs) can be manually set, phototimers help provide a consistent exposure to the image receptor. Ionization chambers produce a current that induces a voltage difference in an electronic circuit. Tech chooses kVp; the x-ray tube curren ...
Tetrode
A tetrode is a vacuum tube having four active electrodes. There are several varieties of tetrode with screen-grid tube, and the beam tetrode being the most common. The four electrodes in order from the centre are: a thermionic cathode, first and second grids and a plate. In screen-grid tubes and beam tetrodes, the first grid is the control grid and the second grid is the screen grid. In other tetrodes one of the grids is a control grid, while the other may have a variety of functions.During the period 1913 to 1927, three distinct types of tetrode valves appeared. All had a normal control grid whose function was to act as a primary control for current passing through the tube, but they differed according to the intended function of the other grid. In order of historical appearance these are: the space-charge grid tube, the bi-grid valve, and the screen-grid tube. The last of these appeared in two distinct variants with different areas of application: the screen-grid valve proper, which was used for medium-frequency, small signal amplification, and the beam tetrode which appeared later, and was used for audio or radio-frequency power amplification. The former was quickly superseded by the rf pentode, while the latter was initially developed as an alternative to the pentode as an audio power amplifying device. The beam tetrode was also developed as a high power radio transmitting tube, and has remained in use until quite recently in both applications.