This Radio monitoring receiver is in a good condition, however the cover is missing. German Luftwaffe Fu.H.E.u (Monitoring receiver) Frequency ranges: 0.73-1.65, 1.65-3.5, 3.5-7.5, 7.5-16, 16-25MHz IF= 470kHz. Calibrator xtal: 2000kHz Circuit: 9x RV2P800 as RF, MIX, Local osc, IF1, IF2, Audion detector, Audio, Calibrator, BFO. Power: 2V 1.8A, 90V 20mA. Automatic bias from anode current. Measures: 453H x 365W x 250D. Weight 22kg