IEC 60151-4:1963 pdf download,Measurements of the electrical properties of electronic tubes and valves – Part 4: Methods of measuring noise factor. IEC 60151-4:1963 presents principles and methods for measuring the noise factor of electronic tubes and valves. Noise factor indicates how much a device degrades the signal-to-noise ratio of an input signal, making it an

IEC 60151-3:1963 pdf download,Measurements of the electrical properties of electronic tubes and valves – Part 3: Measurement of equivalent input and output admittances. IEC 60151-3:1963 establishes a standardized basis for measuring the equivalent input and output admittances of electronic tubes and valves. These admittances describe the alternating-current behavior seen at the input and output terminals

IEC 60151-2:1963 pdf download,Measurements of the electrical properties of electronic tubes and valves – Part 2: Measurement of heater or filament current. IEC 60151-2:1963 specifies the conditions to be observed when measuring the heater or filament current of electronic tubes and valves. The heater or filament is responsible for bringing the emitting cathode to its

IEC 60100:1962 pdf download,Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves. IEC 60100:1962 establishes methods for measuring the direct interelectrode capacitances of electronic tubes and valves. These capacitances are the effective capacitances existing between the electrodes of a vacuum tube, such as the cathode, control grid, screen grid, suppressor grid,

IEC 60151-1:1963 pdf download,Measurements of the electrical properties of electronic tubes and valves – Part 1: Measurement of electrode current. IEC 60151-1:1963 establishes a standardized method for measuring the current flowing through the electrodes of electronic tubes and valves. It is concerned with electrode current as an electrical characteristic, including currents associated with the cathode,