D1-9 (Ustanovka dlja proverki attenjuatorov) 1973
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Installation for checking attenuators "D1-9" was produced since 1973 by the Gorky plant named after MV Frunze. The installation is intended for setting up and periodic calibration of microwave devices in laboratories or repair shops. It allows you to measure attenuation and calibrate individual attenuators, passive microwave elements and attenuators built into signal generators in the frequency range from 100 kHz to 17.44 GHz. Using the device "D1-9" measure the attenuation of signals from 0 to 100 dB at frequencies up to 1 GHz and from 0 to 80 dB at frequencies above 1 GHz. The unit is powered from an alternating current network with a frequency of 50 Hz, voltage 220 V or frequency 400 Hz and voltage 115 V. Power consumption 135 VA. Dimensions of the device 320x480x475 mm. Weight 42.5 kg.
Information from collection of Valery Khartchenko