Vintage LENINGRAD 2 Russian soviet light meter
"Leningrad-2" - a device with a limit of measurement for brightness and two for light having a miniature vnutriramochnym galvanometer with a magnet and a high sensitivity (current deflection galvanometer 25 ... 30 mA) galvanometer readings are transferred to the calculator using the tracking arrows associated with a calculator. The light detector-selenium.
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