Sorry, this page is not translated yet. Automatic translation used.
Since 1929, the radio network receiver lamp "DLS-2" has been producing the Moscow Ordzhonikidze plant. Radio DLS-2 (Detector Lamp, Network 2-lamp) is designed to receive local broadcasting stations on the loudspeaker. The working wave range is from 225 to 2000 m. The signals of radio stations are detected by a crystal detector and then amplified by two low-frequency stages on transformers. A coarse wave tuning is performed by switching the coil turns in the antenna circuit and the coil turns of the resonant circuit, inductively connected to the antenna coil using a common, dual slide switch. Fine tuning for the station wave is made by a variable capacitor included in the circuit. Using a special switch adjusts the connection of the resonant circuit with the detector. Reception is performed on an outdoor antenna or a lighting network connected to the antenna coil with a jumper. The low-frequency amplifier is designed to work with the UO-3 lamps, but can work with the UB-132. The loudspeaker is included in the anode circuit of the lamp of the second cascade. Anode voltage and offset are supplied to the lamps from a full-wave rectifier with a filter operating with a VT-14 (K-2-T), VO-125 or VO-202 lamp, assembled in one box. Lamp heats are powered by a special winding of a transformer power transformer. The rectifier transformer is designed to be powered from an AC mains, with a voltage of 120 volts.