Test set, radio frequency

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Ingenium, 1984.1181.001
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OBJECT TYPE: FREQUENCY METER
DATE: 1945
ARTIFACT NUMBER: 1984.1181.001

MANUFACTURER: C.P.R.
MODEL: BC221-AK
LOCATION: Philadelphia, Pennsylvania, United States of America

More Information

General Information

Serial #: AAF 44-51805
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: WOOD CASE/ METAL HARDWARE/ CARDSTOCK/ CANVAS COVER/ METAL, GLASS & SYNTHETIC WORKING PARTS/ METAL PANEL/ GLASS METER PLATE COVER

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 27.3 cm
Width: 25.5 cm
Height: 39.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Service-test equipment
Sub-Category: N/A

Manufacturer

AKA: CP
Country: United States of America
State/Province: Pennsylvania
City: Philadelphia

Context

Country: North America
State/Province: Unknown
Period: 1945 TO 1965
Canada: PROBABLY USED IN MAINTENANCE OF RADIO COMMUNICATIONS EQUIPMENT INSTALLED IN ONTARIO HYDRO VEHICLES
Function: USED TO CALIBRATE TUNING DIALS OF TRANSMITTING AND RECEIVING EQUIPMENT. MEASURES THE ACCURACY OF FIXED FREQUENCY SENDING AND RECEIVING SETS. A CRYSTAL MARKER IS PROVIDED TO PROVIDE A CALIBRATION POINT FOR ACCURACY VERIFICATION OF THE VARIABLE OSCILLATOR
Technical: EARLY EXAMPLE OF STABLE, ACCURATE CALIBRATION OSCILLATOR FOR RADIO SYSTEMS SERVICE/ THESE QUALITYINSTRUMENTS WERE NOT AVAILABLE FROM THE GENERAL SERVICE INSTRUMENT MFRS. IN 1950'S SO HAD TO BE PURCHASED FROM ARMY SURPLUS OUTLETS/ HAVE BEEN REPLACED BY THE FREQUENCY COUNTER
Area Notes: Unknown

Details

Markings: TWO IDENTICAL SIGNAL CORPS PLATE AFFIXED TO CASE READ: 'SIGNAL CORPS/FREQUENCY METAL BC-221-AK/125-20,000K.C./ 2168: C.P.R. 1757-PHILA-45-07'/ STAMPED IN ORANGE IN UPPER LEFT OF COMPARTMENT: 'SC5438A'/ STAMPED IN RED ON OUTSIDE CASING TOP: 'SC/5176/A'/ STENCILLED ON COVER: 'SERIAL NO. AAF 44-51805/PROJECT NO./ DESTINATION/ TYPE BOMBER, MDL.B24M/ SERIAL BLOCK 30F0/ BATTERIES/ CALIBRATION/HEADSET'
Missing: BATTERIES
Finish: CASE: MILITARY KHAKI DULL FINISH ENAMEL/ KHAKI CANVAS COVER/ FRONT PANEL: BLACK WRINKLE ENAMEL WITH WHITE PRINTING/ PLATED THUMB SCREWS
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

C.P.R., Test set, radio frequency, circa 1945, Artifact no. 1984.1181, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1984.1181.001/

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