Aviation radio `` US-9 '' (Nightingale).
Receiving and transmitting radio equipment.The aircraft radio "US-9" (Nightingale) has been produced since 1947. Created on the basis of the American receiver "BC-348" and is practically a copy of it. The receiver uses 9 lamps of the series: 6K7, 6Zh7, 6Zh8, 6F7, 6B8, 6P6S. The ranges are 200 ... 500 kHz and 1.5 ... 18 MHz. Sensitivity 3 ... 8 µV (telegraph), 5 ... 15 µV (AM). Intermediate frequency 915 kHz. Power supply from the on-board network, either DC 27 V, or AC 115 V, 400 Hz through a built-in umformer. Power consumption 35 W. Receiver dimensions 245x460x275 mm. Weight 18 kg.
