Transmitter, radio
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1975.0039.001
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- OBJECT TYPE
- AM/CW-LW/AC/TUBE/FLOOR/AIRPORT
- DATE
- 1934
- ARTIFACT NUMBER
- 1975.0039.001
- MANUFACTURER
- Canadian Marconi Co.
- MODEL
- 84520-E
- LOCATION
- Montréal, Québec, Canada
More Information
General Information
- Serial #
- 321
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- ALUMINUM FRAME & REMOVEABLE PANELS. METAL TUBE AND POWER RESISTOR SOCKETS. GLASS, METAL & SYNTHETIC (BAKELITE)FITTINGS & COMPONENTS.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 71.2 cm
- Width
- 76.2 cm
- Height
- 181.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Radio
- Sub-Category
- N/A
Manufacturer
- AKA
- Marconi
- Country
- Canada
- State/Province
- Québec
- City
- Montréal
Context
- Country
- Canada
- State/Province
- Quebec
- Period
- THIS TYPE OF TRANSMITTER USED C. 1934 TO C. 1960.
- Canada
-
MANUFACTURED IN CANADA, TO DOC SPECS. USED IN MONT JOLI, PQ SUB STATION. - Function
-
TO CONVERT 115V 60HZ ALTERNATING CURRENT TO A MODULATED BEACON SIGNAL IN THE LONG WAVE RADIO FREQUENCY BAND (450-500 KHZ). USED TO ASSIST PILOT IN LOCATING AIRPORT WHEN VISIBILITY IS LIMITED. - Technical
-
TRANSMITTER ELEMENT OF SIMPLE RADIO SYSTEM WHICH ENABLED A PILOT TO LOCATE AN AIRPORT DURING POOR VISIBILITY. ONE UNIT TRANSMITTED AN "A" IN MORSE CODE (".-"); THE OTHER AN "N" ("-."). IF THE PILOT HEARD A STEADY TONE FROM HIS BEACON RECEIVER, HE WAS CENTERED ON THE AIRPORT APPROACH. IF HE HEARD A PREDOMINANT "A" (.-) OR PREDOMINANT "N" (-.), HE WAS LEFT OR RIGHT OF APPROACH CENTRE. - Area Notes
-
Unknown
Details
- Markings
- All contols, etc. labelled. Mfr's plate located in upper left of cabinet front reads " 400W. AIRWAYS BEACON TRANSMITTER/ TYPE 84520-E SERIAL 321/ VOLTS 115 CYCLES 50/60 AMPS 25 P.F. 90%/ MANUFACTURED FOR/ DEPT. OF TRANSPORT/ CANADA/ BY/ CANADIAN MARCONI COMPANY ".
- Missing
- HIGH POWER RF AND AF VACUUM TUBES; FREQUENCY CONTROL CRYSTALS; AUDIO TONE SOURCE CHASSIS; OVER CURRENT RELAY COVER; POWER TRANSFORMER & FILTER CHOKES. NB: FRAME BENT.
- Finish
- BLACK WRINKLE FINISH ON CASING.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Canadian Marconi Co., Transmitter, radio, circa 1934, Artifact no. 1975.0039, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1975.0039.001/
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