Users` Manual - Mapletree Audio Design
... For simplicity, the schematic diagram shows only the left channel and the power supply. Both channels are identical. The inputs for each channel are applied to the input jacks J1a,b and fed directly to the volume control P1, which is a ladder-type stepped attenuator. The signal from the output of th ...
... For simplicity, the schematic diagram shows only the left channel and the power supply. Both channels are identical. The inputs for each channel are applied to the input jacks J1a,b and fed directly to the volume control P1, which is a ladder-type stepped attenuator. The signal from the output of th ...
What is the current?
... Conductors : Gold, Silver, Copper, Iron, Lead, Salt Water. Insulators : Plastics, Glass, Dry Air, Wood. ...
... Conductors : Gold, Silver, Copper, Iron, Lead, Salt Water. Insulators : Plastics, Glass, Dry Air, Wood. ...
Electricity - people.vcu.edu
... •In conductors, the valence band is full and extra electrons are found in the conduction band. •Materials with small energy requirements for electrons to jump from the valence band to the conduction band make good conductors. ...
... •In conductors, the valence band is full and extra electrons are found in the conduction band. •Materials with small energy requirements for electrons to jump from the valence band to the conduction band make good conductors. ...
Batteries
... battery has more than enough electromotive force to produce harmful products, such as poisonous Cl2 gas! ...
... battery has more than enough electromotive force to produce harmful products, such as poisonous Cl2 gas! ...
photoelectric effect
... The experiment requires a multi-chromatic source of light, and the ability to measure the light frequency and the photo-electron energy. The frequency measurement is easy: start with light of a broad spectrum and use optical filters to create approximately monochromatic beams at a number of differen ...
... The experiment requires a multi-chromatic source of light, and the ability to measure the light frequency and the photo-electron energy. The frequency measurement is easy: start with light of a broad spectrum and use optical filters to create approximately monochromatic beams at a number of differen ...
Local Oscillator / Harmonic Mixer Frequency Measurement System
... based a local oscillator and a harmonic mixer. The components were purchased from stock as discrete components Fig. 1 is a photograph of the assembled system and the circuit can be identified. The signal from the microwave source to be counted is feed into the harmonic mixer along with the output of ...
... based a local oscillator and a harmonic mixer. The components were purchased from stock as discrete components Fig. 1 is a photograph of the assembled system and the circuit can be identified. The signal from the microwave source to be counted is feed into the harmonic mixer along with the output of ...
Cavity magnetron
The cavity magnetron is a high-powered vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field while moving past a series of open metal cavities (cavity resonators). Bunches of electrons passing by the openings to the cavities excite radio wave oscillations in the cavity, much as a guitar's strings excite sound in its sound box. The frequency of the microwaves produced, the resonant frequency, is determined by the cavities' physical dimensions. Unlike other microwave tubes, such as the klystron and traveling-wave tube (TWT), the magnetron cannot function as an amplifier, increasing the power of an applied microwave signal, it serves solely as an oscillator, generating a microwave signal from direct current power supplied to the tube.The first form of magnetron tube, the split-anode magnetron, was invented by Albert Hull in 1920, but it wasn't capable of high frequencies and was little used. Similar devices were experimented with by many teams through the 1920s and 30s. On November 27, 1935, Hans Erich Hollmann applied for a patent for the first multiple cavities magnetron, which he received on July 12, 1938, but the more stable klystron was preferred for most German radars during World War II. The cavity magnetron tube was later improved by John Randall and Harry Boot in 1940 at the University of Birmingham, England. The high power of pulses from their device made centimeter-band radar practical for the Allies of World War II, with shorter wavelength radars allowing detection of smaller objects from smaller antennas. The compact cavity magnetron tube drastically reduced the size of radar sets so that they could be installed in anti-submarine aircraft and escort ships.In the post-war era the magnetron became less widely used in the radar role. This was because the magnetron's output changes from pulse to pulse, both in frequency and phase. This makes the signal unsuitable for pulse-to-pulse comparisons, which is widely used for detecting and removing ""clutter"" from the radar display. The magnetron remains in use in some radars, but has become much more common as a low-cost microwave source for microwave ovens. In this form, approximately one billion magnetrons are in use today.