An excellent specimen for the collection of Soviet school instruments on physics of the USSR.

           Vintage school educational electrical laboratory device "Demonstration indicator Rad...", mounted on a textolite panel in a bakelite case under glass. Manufactured in the USSR at the Leningrad plant (Svetlana-R) in 1961.

            Power supply 127/220 volts. There are contacts for connecting an external bass amplifier.

          Full testing was not carried out due to the lack of necessary things. The sound and light signal was tested. Video demonstration. When you connect the power and touch the STS-5 body, you hear a crackling sound and a flash in the lamp.

          The condition is good, the item is over 60 years old. Scuffs, small chip. For condition of the lot and completeness, see the photo part of the description.

          Dimensions 280x200x105 mm (11.0x7.8x4.1 inches). Weight - 1.5 kg.

Dear buyers. Look in my auctions for other Soviet vintage Teaching Aids in physics for high school students.

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