Amplifier, voltage

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Ingenium, 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

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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://collection.ingeniumcanada.org/en/id/1968.0533.001/

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