electromagnetic wave transmission and reception demonstration
Date: 1959
Inventory Number: RS0874
Classification: Radio Apparatus
Subject:
Maker: Soviet Russian
Maker: Elektrodelo (20th Century)
User: Cruft Laboratory, Harvard University (founded 1914)
Cultural Region:
Place of Origin:
Dimensions:
box: 13 x 51 x 21 cm (5 1/8 x 20 1/16 x 8 1/4 in.)
Material:
Description:
A demonstration set for radio transmission and reception. Consists of three electronic panels in a brown insulating material (bakelite?), three metal stands (one for each panel), and four removable metal bars (antennas). One of the panels has a loop antenna attached.
Signedon box in Russian (latin transcription): RSFCR MINISTERITVO PROSVESHCHENIYE / ZAVOD U 10 / <> / LENINGRAD / GENERATOR UKV
plaque on largest piece, in Russian (latin transcription): MIN. PROSV. RSFSR / <> / (specifications follow) / No. 4642 LENINGRAD 1959 G
plaque on largest piece, in Russian (latin transcription): MIN. PROSV. RSFSR / <
Inscribedstamped on top of box: MADE IN / U.S.S.R.;
label: RUSSIAN ELECTROMAGNETIC WAVE DEMONSTRATION / TUBES: 6N7-GT / ENERGY RADIATED: 5 WATTS MAXIMUM / FREQUENCY: 1.5 X 10 (to the 8th) / BULBS: GE No. 40 Radio 6-8 V 0.15A / WIRING (diagram) / NOTES: THE DIPOLE ANTENNA WORKS WELL AND / SHOWS POLARIZATION. THE HERTZ-TYPE DETECTOR / DOES NOT WORK WELL; IT HAS TOO LOW / A SENSITIVITY.
label: RUSSIAN ELECTROMAGNETIC WAVE DEMONSTRATION / TUBES: 6N7-GT / ENERGY RADIATED: 5 WATTS MAXIMUM / FREQUENCY: 1.5 X 10 (to the 8th) / BULBS: GE No. 40 Radio 6-8 V 0.15A / WIRING (diagram) / NOTES: THE DIPOLE ANTENNA WORKS WELL AND / SHOWS POLARIZATION. THE HERTZ-TYPE DETECTOR / DOES NOT WORK WELL; IT HAS TOO LOW / A SENSITIVITY.
FunctionA demonstrational set for radio transmitting and receiving. The diagram on the box gives a good rendering of how the instruments would have looked while in use.
Curatorial Remarks"Ministeritvo Prosveshcheniye" refers to the Education Ministry of the Russian Republic of the USSR.
Dated 1959, but has a style that would have been found in the West in the 1920s-1930s.
A demonstrational crystal radio also made by Elektrodelo in the 1960s is described in Radiomuseum.org. It has a different, more modern style. See it here.
Dated 1959, but has a style that would have been found in the West in the 1920s-1930s.
A demonstrational crystal radio also made by Elektrodelo in the 1960s is described in Radiomuseum.org. It has a different, more modern style. See it here.
ProvenanceFrom the Cruft Laboratory, Harvard University.