What is an oscillator of the grid?
GRID DIP oscillator is an electronic device that uses an active device called a triode vacuum tube to generate periodic alternating current. The output of the oscillator DIP grid usually falls within the range of radio frequency (RF), approximately 50,000 cycles per second (CPS) and higher. The oscillators are amplifiers with positive feedback, achieved by allowing parts of the output in the phase to reach the input of the oscillator. The coil or inductor usually in parallel with a capacitor or capacitor is the perimeter of the tank that controls the frequency of oscillation.
Vacuum tubes were the only active devices used in radio electronics up to the age of 20. They were formed by a negatively charged electrode called the cathode, which emits the electrons of the vacuum into a positively charged board - anode. The control grid between the cathode and the plate is able to control the amount of electrons that reach the plate. By adding a resistor to the cathode circuit, the negative voltage on the NM commertube.
The tank circumference is added to the plate circuit of the vacuum tube. The middle frequency of the perimeter of the tank is analogous to the swivel frequency of the pendulum. When the capacitor value or inductor value is lower, the resonant frequency is higher. Is the circuit of the tank, made of inductor and capacitor, resonance at 100,000 CPS or 100 klohertz (KHZ), the tank circumference transmits energy between capacitor and inductor at 100 kHz. At one point, all energy in the tank circuit at the capacitor will be as maximum voltage; Half the cycle later, all the energy of the inductor will be as a magnetic flow of the maximum magnetic flow.
The grid meter uses a current meter to check the change of the grid current. It can be connected to the oscillator of immersion of the grid to indicate when the energy transmission will be transferred to the nearby tank test. If the resonant frequency of an unknown tank district was 250 kHz, it may beWith the tunable circuit of the tank used the oscillator of the grid. If the RF range of the oscillator was 200 to 300 kHz immersion, it is possible to tune the meter of immersion to the approximately center of the dial and find that the grid meter indicates the maximum clutch to the test tank circuit.
Absorption wave is a device used by a calibrated dial that denotes a resonant frequency. It can be a completely passive device that uses the tank circumference and a detection circuit with a capacitor filter. Due to the presence of the RF source, the absorption waves can be used to tune in to the RF source frequency. If the resonant frequency of the tank of the tank is absorbent in the frequency range of the absorption waves, it is possible to tune to the maximum direct current output level (DC).