Receiving amplifier and transmitting tubes with power to 25 watt continuously scattered by anode. Measurement methods of dynamic amplification factor and amplification asymmetry at LF
State system for ensuring the uniformity of measuring. Reference materials. Basic principles, ways of development, certification, approval, registration and use
Steel pattern plates for moulding boxes having inside dimensions 1200x1000 mm for moulding foundry machines with turn of half mould without squeezing. Design and dimensions