Rectification - NYCC SP-01
... indirect current into direct current. We have already seen how the x-ray tube operates but we were assuming that the current being supplied to it (to fulfill the second requirement for x-ray production) was such as to make the anode positive in respect to the cathode. This is diagrammed as follows: ...
... indirect current into direct current. We have already seen how the x-ray tube operates but we were assuming that the current being supplied to it (to fulfill the second requirement for x-ray production) was such as to make the anode positive in respect to the cathode. This is diagrammed as follows: ...
So far we have talked about production primarily of gamma rays
... kinds we need to do radiation therapy is that those high potential differences just really are not safe. You don’t want to have a potential of several million electron volts sitting in your radiation oncology suite; making that kind of potential difference safe would be very difficult. What we do in ...
... kinds we need to do radiation therapy is that those high potential differences just really are not safe. You don’t want to have a potential of several million electron volts sitting in your radiation oncology suite; making that kind of potential difference safe would be very difficult. What we do in ...
ionization gauge tubes
... correct grounding is provided. Research at The Fredericks Company has established that ion producing equipment, such as ionization gauges, mass spectrometers, sputtering systems, etc. from many manufacturers may, under some conditions, provide sufficient electrical conduction via a plasma to couple ...
... correct grounding is provided. Research at The Fredericks Company has established that ion producing equipment, such as ionization gauges, mass spectrometers, sputtering systems, etc. from many manufacturers may, under some conditions, provide sufficient electrical conduction via a plasma to couple ...
Magnetic response and NMR spectra of carbon
... with experiment.7–9,25 Note that, as already indicated in Refs. 7 and 8, the NMR chemical shift depends very weakly on the diameter and on the chirality of the semiconducting nanotubes: the isotropic shifts of the zigzag tubes studied in this work lie between 132 ppm for the smallest tube 关the 共8 , ...
... with experiment.7–9,25 Note that, as already indicated in Refs. 7 and 8, the NMR chemical shift depends very weakly on the diameter and on the chirality of the semiconducting nanotubes: the isotropic shifts of the zigzag tubes studied in this work lie between 132 ppm for the smallest tube 关the 共8 , ...
A powerful new light source for ultraviolet detection of scorpions in
... widths of only about 20 nm. lamps suffer from several limitations. Fluorescent lights convert energy stored in a battery to UV photons more efficiently than incandescent lights, but significant losses are still incurred by the AC inverter and ballast circuits. Additional losses include heat dissipat ...
... widths of only about 20 nm. lamps suffer from several limitations. Fluorescent lights convert energy stored in a battery to UV photons more efficiently than incandescent lights, but significant losses are still incurred by the AC inverter and ballast circuits. Additional losses include heat dissipat ...
Part6 - Physics Learning Laboratories
... from air. Neon or mercury-vapor discharges can be produced, which superficially exhibit quite different phenomena from the ordinaryair discharge. With these gases, the tube may displaya continuous red or blue glow, with no evidence of striations. However, for most demonstration purposes, the ordinar ...
... from air. Neon or mercury-vapor discharges can be produced, which superficially exhibit quite different phenomena from the ordinaryair discharge. With these gases, the tube may displaya continuous red or blue glow, with no evidence of striations. However, for most demonstration purposes, the ordinar ...
strobe troubleshooting guide
... amplified in the radio and produced through the speaker and or head phones LOUD and CLEAR. Two things you can do: #1 – Connect the strobe light circuit breaker to the low impedance end of the electrical buss, using a 16g jumper. Get as close to the battery as possible. #2 – Install additional filter ...
... amplified in the radio and produced through the speaker and or head phones LOUD and CLEAR. Two things you can do: #1 – Connect the strobe light circuit breaker to the low impedance end of the electrical buss, using a 16g jumper. Get as close to the battery as possible. #2 – Install additional filter ...
parasitic-oscillatio..
... Parasitic or HF oscillations is unique to the tube and chassis setup. It's kinda like a super high resonance frequency that is inherent with the tube's construction and the EMF surrouding it. Once you hit this frequency, the tube starts to go ballistic and sucks (I guess this is where the term "para ...
... Parasitic or HF oscillations is unique to the tube and chassis setup. It's kinda like a super high resonance frequency that is inherent with the tube's construction and the EMF surrouding it. Once you hit this frequency, the tube starts to go ballistic and sucks (I guess this is where the term "para ...
OOGIE MESA - MESA/Boogie
... 2 ) Ground loops occuring because of two or more audio cables connecting two components. The most common solution is to diconnect the shield from the sleeve connection at one end of some of the inter-connecting cables, so that only one cable between each device has an intact ground shield. Some expe ...
... 2 ) Ground loops occuring because of two or more audio cables connecting two components. The most common solution is to diconnect the shield from the sleeve connection at one end of some of the inter-connecting cables, so that only one cable between each device has an intact ground shield. Some expe ...
Mojotone 1484 Amp Kit Manual
... heat, arcing, smoking, etc. Test tube socket voltage with a multimeter to ensure correct operation. Turn Amp off before putting tubes in proper location, and allow tubes to heat up for approx. 30 secs. Before playing at volume. Listen. The best way to tell if there any problems with the circuit of t ...
... heat, arcing, smoking, etc. Test tube socket voltage with a multimeter to ensure correct operation. Turn Amp off before putting tubes in proper location, and allow tubes to heat up for approx. 30 secs. Before playing at volume. Listen. The best way to tell if there any problems with the circuit of t ...
Heater / Filament Supplies
... reference and to prevent the 50Hz heater hum reaching the HT supply. It's actual value is not critical, anything over 10uF should be fine. DC heater supplies: Properly designed DC supplies do not cause hum since the stray current between filament and cathode is unchanging. However, DC supplies nearl ...
... reference and to prevent the 50Hz heater hum reaching the HT supply. It's actual value is not critical, anything over 10uF should be fine. DC heater supplies: Properly designed DC supplies do not cause hum since the stray current between filament and cathode is unchanging. However, DC supplies nearl ...
A ROYAL TREAT FOR YOUR EARS AudioValveRKV Mark II , The
... resistance earphones of AKG K240 Studio (55 Ohms) and Grado SR60 (32 Ohms), the performance can perfectly meet the standard requirement. But in reference to the earphone amplifier, the difference is not so obvious. To match the AudioValve with low resistance earphone (under 100 Ohms), we recommend t ...
... resistance earphones of AKG K240 Studio (55 Ohms) and Grado SR60 (32 Ohms), the performance can perfectly meet the standard requirement. But in reference to the earphone amplifier, the difference is not so obvious. To match the AudioValve with low resistance earphone (under 100 Ohms), we recommend t ...
- Pcpolytechnic
... Video processing unit: contains video signals from display adopter card to video Amplifier Circuit. Video signal controls brightness of beam only two levels to set brightness ON and OFF. Vertical Sync Processing: vertical sync signal from video adopter cards informs monitor that entire screen is dis ...
... Video processing unit: contains video signals from display adopter card to video Amplifier Circuit. Video signal controls brightness of beam only two levels to set brightness ON and OFF. Vertical Sync Processing: vertical sync signal from video adopter cards informs monitor that entire screen is dis ...
Word - The Vacuum Tube Collective
... There is a lot of superfluous "stuff" in a tube-powered tape recorder that you have to remove before you can get down to the essentials and this can be a lot of very tedious work. The easiest conversions are the Roberts/Akai stereo units, as discussed earlier. They have almost all the electronics bu ...
... There is a lot of superfluous "stuff" in a tube-powered tape recorder that you have to remove before you can get down to the essentials and this can be a lot of very tedious work. The easiest conversions are the Roberts/Akai stereo units, as discussed earlier. They have almost all the electronics bu ...
WIRE WOUND RESISTORS
... After power is removed the charge on the capacitor will drain off through this "bleeder resistor", causing the voltage to decay quickly to safe levels. While the power supply is on, a small current flows through the bleeder resistor, wasting a small amount of power. ...
... After power is removed the charge on the capacitor will drain off through this "bleeder resistor", causing the voltage to decay quickly to safe levels. While the power supply is on, a small current flows through the bleeder resistor, wasting a small amount of power. ...
Equipment Operation Manual for X
... trapped pockets of gas behave as virtual leaks and prevent the system from attaining its minimum pressure. As pumping time increases, these pockets of gas eventually pump out (“outgas”), but can take several hours or days for this process to be complete. ...
... trapped pockets of gas behave as virtual leaks and prevent the system from attaining its minimum pressure. As pumping time increases, these pockets of gas eventually pump out (“outgas”), but can take several hours or days for this process to be complete. ...
Plasma Display Documentation
... electrode from which plasma trails or streams propagate. This type of IGDT requires a very high voltage, high frequency AC power supply. Since the IGDT has only one electrode, the return path for the current flowing inside the tube is the air itself. The capacitance between the high voltage electrod ...
... electrode from which plasma trails or streams propagate. This type of IGDT requires a very high voltage, high frequency AC power supply. Since the IGDT has only one electrode, the return path for the current flowing inside the tube is the air itself. The capacitance between the high voltage electrod ...
Technical comparison between SED and FED
... As one line is activated, the pixels in that line are switched ON by the column drivers; the period that each pixel in the line is left ON is determined by the luminous intensity required from that pixel for that image frame. Since the emission current from the emitters is highly non-linear and the ...
... As one line is activated, the pixels in that line are switched ON by the column drivers; the period that each pixel in the line is left ON is determined by the luminous intensity required from that pixel for that image frame. Since the emission current from the emitters is highly non-linear and the ...
The Importance of Correct FET Biasing in the eTap2hw
... High Tension (HT) voltage, the cathode connected directly to ground and the small input AC voltage (our guitar signal) connected to the grid. The small input is amplified about 30x to produce a large voltage swing across the plate resistor. The low-voltage AC signal connected between the grid and ca ...
... High Tension (HT) voltage, the cathode connected directly to ground and the small input AC voltage (our guitar signal) connected to the grid. The small input is amplified about 30x to produce a large voltage swing across the plate resistor. The low-voltage AC signal connected between the grid and ca ...
Mojotone Tweed Deluxe Style Amp Kit Instruction
... f) If you plan on doing modifications such as “hot-rodding” (ie. adding a bright switch etc.) and have never put a kit together before, it is suggested that you assemble the basic amp and have it functioning properly, to have an understanding of how the amp works before you start modifying it. g) Ch ...
... f) If you plan on doing modifications such as “hot-rodding” (ie. adding a bright switch etc.) and have never put a kit together before, it is suggested that you assemble the basic amp and have it functioning properly, to have an understanding of how the amp works before you start modifying it. g) Ch ...
cathode-mixing.pdf
... Still what is occurring is the difference between the grid & cathode voltages are what is being amplified. Neither electrode necessarily has to be held constant for reference, simultaneous signals could be applied and the plate output would represent the differences in those signals only. Signals co ...
... Still what is occurring is the difference between the grid & cathode voltages are what is being amplified. Neither electrode necessarily has to be held constant for reference, simultaneous signals could be applied and the plate output would represent the differences in those signals only. Signals co ...
Raypak Digital Low NOx Pool and Spa Heater
... the market today. Any two- or three-wire remote can connect to the Raypak Digital and be integrated into the pool control system of your choice. The display clearly shows the heater is under control of a remote system. ...
... the market today. Any two- or three-wire remote can connect to the Raypak Digital and be integrated into the pool control system of your choice. The display clearly shows the heater is under control of a remote system. ...
sfbmtips.pdf
... One thing I'd like to mention about "blackfacing" the PI by changing its plate resistors from 47k/47k to 82k/100k: I was displeased with the higher value resistors. (The cathode string was also changed out.) My ears tell me that the 47k plate resistors and tail resistor network used in later SF amp ...
... One thing I'd like to mention about "blackfacing" the PI by changing its plate resistors from 47k/47k to 82k/100k: I was displeased with the higher value resistors. (The cathode string was also changed out.) My ears tell me that the 47k plate resistors and tail resistor network used in later SF amp ...
Development of pixel hybrid photon detectors
... with respect to the window centre. The shield attenuation as well as the image distortions of the shielded tube have been measured in longitudinal and transverse fields of 10, 20 and 30 Gauss. In case of a transverse field, a non-uniform image shift occurs. It is maximal on the tube axis and is equa ...
... with respect to the window centre. The shield attenuation as well as the image distortions of the shielded tube have been measured in longitudinal and transverse fields of 10, 20 and 30 Gauss. In case of a transverse field, a non-uniform image shift occurs. It is maximal on the tube axis and is equa ...
BLACK CAT SERIES
... extremely dangerous and will also shorten the life of the tubes considerably. 2. Vacuum tubes will last longer and sound more musical when they are allowed to warm up prior to introducing an input signal from your guitar. A full flow of electrons from the cathode can only be achieved when the tube i ...
... extremely dangerous and will also shorten the life of the tubes considerably. 2. Vacuum tubes will last longer and sound more musical when they are allowed to warm up prior to introducing an input signal from your guitar. A full flow of electrons from the cathode can only be achieved when the tube i ...
Vacuum tube
In electronics, vacuum tube, electron tube, tube (in North America), or valve (in Britain and some other regions) is a device that controls electric current between electrodes in an evacuated container.Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. This type is called a thermionic tube or thermionic valve. A phototube, however, achieves electron emission through the photoelectric effect. Not all valves/electron tubes are evacuated ""vacuum tubes""; gas-filled tubes are similar devices containing a gas, typically at low pressure, which exploit phenomena related to electric discharge in gases, usually without a heater.The simplest vacuum tube, the diode, contains only a heater, a heated electron-emitting cathode (the filament itself acts as the cathode in some diodes), and a plate (anode). Current can only flow in one direction through the device between the two electrodes, as electrons emitted by the cathode travel through the tube and are collected by the anode. Adding one or more control grids within the tube allows the current between the cathode and anode to be controlled by the voltage on the grid or grids. Tubes with grids can be used for many purposes, including amplification, rectification, switching, oscillation, and display.Invented in 1904 by John Ambrose Fleming, vacuum tubes were a basic component for electronics throughout the first half of the twentieth century, which saw the diffusion of radio, television, radar, sound reinforcement, sound recording and reproduction, large telephone networks, analog and digital computers, and industrial process control. Although some applications had counterparts using earlier technologies such as the spark gap transmitter or mechanical computers, it was the invention of the vacuum tube that made these technologies widespread and practical.In the 1940s the invention of semiconductor devices made it possible to produce solid-state devices, which are smaller, more efficient, more reliable, more durable, and cheaper than tubes.Hence, from the mid-1950s solid-state devices such as transistors gradually replaced tubes. The cathode-ray tube (CRT) remained the basis for televisions and video monitors until superseded in the 21st century. However, there are still a few applications for which tubes are preferred to semiconductors; for example, the magnetron used in microwave ovens, and certain high frequency amplifiers.