Morse code practice set
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Ingenium,
1997.0361.001
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- OBJECT TYPE
- MECHANICAL/TAPE
- DATE
- 1935
- ARTIFACT NUMBER
- 1997.0361.001
- MANUFACTURER
- INSTRUCTOGRAPH CO.
- MODEL
- JUNIOR
- LOCATION
- Chicago, Illinois, United States of America
More Information
General Information
- Serial #
- 201
- Part Number
- 1
- Total Parts
- 4
- AKA
- N/A
- Patents
- N/A
- General Description
- .1 WOODEN BOX HAS COATED CLOTH COVERING; METAL, GLASS AND SYNTHETIC WORKING PARTS. FABRIC COVERING ON BATTERY CONNECTION CABLES..2-.3 PAPER TAPE ON WOODEN SPOOLS..4 METAL CRANK HANDLE HAS WOODEN KNOB. PT BATTERY CASE IS PAPER; METAL FITTINGS. PT VACUUM TUBE HAS GLASS, METAL & SYNTHETIC COMPONENTS.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 27.0 cm
- Width
- 18.5 cm
- Height
- 18.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telegraphy
- Sub-Category
- N/A
Manufacturer
- AKA
- INSTRUCTOGRAPH
- Country
- United States of America
- State/Province
- Illinois
- City
- Chicago
Context
- Country
- North America
- State/Province
- Unknown
- Period
- PROBABLY USED BETWEEN C. 1935 AND 1945
- Canada
-
Unknown - Function
-
USED TO PRACTICE DECIPHERING MORSE CODE. - Technical
-
AN EXAMPLE OF EARLY EQUIPMENT USED TO AUTOMATE THE TEACHING OF MORSE CODE. SPRING DRIVEN MOTOR DRAWS A PUNCHED PAPER TAPE OFF A REEL & THROUGH A SPRING CONTACT, WHERE IT MAKES OR BREAKS AN ELECTRICAL CURRENT BEFORE BEING TAKEN UP ON A 2ND REEL. CURRENTIS MODULATED BY A VACUUM TUBE OSCILLATOR. MONITORING WITH HEADPHONES, THE USER HEARS "BEEPS" RESEMBLING THE CODED SIGNALS OF RADIOTELEGRAPHY [REF.1] - Area Notes
-
Unknown
Details
- Markings
- .1PT LABEL AFFIXED TO INSIDE OF LID: ' MFD. BY/ INSTRUCTIGRAPH CO./ 912 LAKESIDE PLACE/ CHICAGO, - ILLINOIS/ PATENT NO. 1,725,145' "178" HANDWRITTEN IN PENCIL ON LABEL/ METAL PLATE ON SIDE: '201'/ STAMPED IN [speed] SCALE: 'F 80 S'. LOCKS MARKED "EAGLE LOCK CO./ TERRYVILLE, CONN./ MADE/ IN/ U.S.A."/ PRINTING ON pt BATTERY CASE INCLUDES: 'NO 771 4 1/2 VOLTS/ EVEREADY/ TRADE MARK/ RADIO C BATTERY/ NATIONAL CARBON COMPANY/.../ MADE IN CANADA/ PATENTED/ 1927, 1929,/ 1930, 1931'. pt VACUUMTUBE MARKED "MADE IN/ 30/ CANADA/ GE/ GENERAL ELECTRIC/ RADIOTRON" and "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON".
- Missing
- METAL COLLAR AROUND CRANK HOLE; PART OF BACK PANEL; ADDITIONAL SPOOLS AND PAPER TAPE; INSTRUCTION BOOKLET [REF 2]
- Finish
- .1 CASE HAS FAUX BLACK LEATHER COVERING ON EXTERIOR; SHINY SILVER METAL FITTINGS AND SELECTED COMPONENTS; GREEN, BLACK AND RED WOVEN FABRIC COVERING ON CABLES..2-.3 VARNISHED WOODEN SPOOLS HOLD BEIGE PAPER TAPE..4 SILVER METAL CRANK HANDLE HAS TURNED WOODEN KNOB, PAINTED BLACK. PT BATTERY CASING IS OFF-WHITE, WITH BLUE, ORANGE AND BLACK MARKINGS. PT VACUUM TUBE'S CLEAR GLASS SLEEVE HAS BEEN PARTIALLY SILVERED; BLACK BASE.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
INSTRUCTOGRAPH CO., Morse code practice set, circa 1935, Artifact no. 1997.0361, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1997.0361.001/
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