Amplifier, voltage
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1968.0533.001
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- OBJECT TYPE
- N/A
- DATE
- Unknown
- ARTIFACT NUMBER
- 1968.0533.001
- MANUFACTURER
- General Radio Co.
- MODEL
- 714-A
- LOCATION
- Cambridge, Massachusetts, United States of America
More Information
General Information
- Serial #
- 288
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- ALUMINUM FRONT PANEL & COVER/ PLATED COPPER SIDE PLATES, CHASSIS & INTERNAL SHIELDING/ SYNTHETIC KNOBS & SWITCHES/ METAL, GLASS & SYNTHETIC WORKING PARTS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 48.3 cm
- Width
- 26.4 cm
- Height
- 17.8 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Energy-electric
- Category
- Measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- General Radio
- Country
- United States of America
- State/Province
- Massachusetts
- City
- Cambridge
Context
- Country
- North America
- State/Province
- Unknown
- Period
- 1935-1950
- Canada
-
Unknown - Function
-
AMPLIFIES LOW FREQUENCY ALTERNATING CURRENT OVER THE RANGE OF 5HZ TO 50000 HZ, WITH A TOTAL GAIN OF 80DB/ REQUIRED WHERE A SIGNAL IS TOO WEAK FOR AVAILABLE TEST EQUIPMENT TO MEASURE. THIS AMPLIFIER PROVIDED THE AMPLIFICATION TO MAKE A WEAK SIGNAL MEASURABLE - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- PRINTED ON FRONT PANEL: 'VOLTAGE AMPLIFIER/ TYPE 714-A SERIAL NO. 288/ GENERAL RADIO CO./CAMBRIDGE MASS U.S.A./ OUTPUT 100 VOLTS/ 5-50,000 ~ 80 db GAIN/ LOAD IMPEDANCE > 100,000 ____'/ STENCILLED ON BACK: 'R95'/ PLATE ON BACK: '115 VOLTS/ 40-60 ~'/ DECAL ON BACK: '[?]STRUMENT IS LICENSED UNDER/ PATENTS OF THE AMERICAN TELEPHONE/ AND TELEGRAPH COMPANY SOLELY FOR/ UTILIZATION IN RESEARCH, INVESTIGA-/ TION, MEASUREM[?] [?]TING, [?]TRUC-/ [?]ON, AND DEVELOPMENT WORK IN PURE/ AND APPLIED SCIENCE.'
- Missing
- N/A
- Finish
- FRONT PANEL & TOP COVER BLACK ENAMEL/ SIMULATED LEATHER FINISH SIDES/ GLOSS BLACK CHASSIS/ PLATED COPPER
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
General Radio Co., Amplifier, voltage, Unknown Date, Artifact no. 1968.0533, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1968.0533.001/
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