Buildings and constructions. Method for determining the building structure ability to maintain a relatively constant temperature of its inside surface under cycling thermal influence
Description in Russian:
Здания и сооружения. Метод определения теплоустойчивости ограждающих конструкций
Oscillator, modulator and regulation tubes with anode dissipated power above 25 W. Measurement methods of currents of anode and grids, having positive voltage relative to cathode and zero anode and grids currents
