General Information

Serial #

137

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

PLASTIC CASING/ SYNTHETIC & METAL WORKING PARTS

Dimensions

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

Length

38.5 cm

Width

13.0 cm

Height

17.4 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper air pressure, temperature & humidity measurement

Sub-Category

N/A

Manufacturer

AKA

GENERAL INSTRUMENT

Country

United States of America

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

C. 1959

Canada

Unknown

Function

DEVICE LIFTED BY BALLOON INTO UPPER ATMOSPHERE TO MEASURE TEMPERATURE,HUMIDITY, & AIR PRESSURE & TRANSMIT DATA TO EARTH. WIND SPEED & DIRECTION CAN BE DETERMINED BY TRACKING RADIOSONDE.

Technical

A 1950'S SYTLE OF AMERICAN RADIOSONDE CONTROLLED BY A BY A BAROSWITCH, WHICH HAS AN ANEROID SENSOR & ALSO SWITCHES IN THE CERAMIC RODTHERMISTOR (TEMPERATURE SENSOR) & ELECTROLYTIC PLASTIC STRIP HUMIDITY SENSOR & REFERENCE RESISTORS. THESE ELEMENTS ARE HOUSEDWITHIN A PLASTIC CASING WITH AN OUTRIGGER & TRANSMITTER CONE.

Area Notes

Unknown

Details

Markings

BLACK LETTERING ON FRONT READING 'MODULATOR, RADIOSONDE/ MD-210A/ AMT-4B/ SERIAL NO. 137/ ORDER NO. P-9580/ AUTOMATIC MFG. DIV./ GENERAL INSTRUMENT CORP./ U.S.' & ON TRANSMITTER CONE READING 'TRANSMITTER RADIOSONDE T-435/AMT-4B/ SERIAL NO. 58/ ORDER NO. P-9580/ AUTOMATIC MFG. DIV./ GENERAL INSTR. CORP./ U.S.'/ BLACK STAMPED '36799' ON BAROSWITCH FRAME/ GREY 'A.M.D. 25-301427' ON BAROSWITCH SCALE

Missing

THERMISTOR/ HYGRISTOR/ BATTERY From CA of 10/19/1993 by Tony Missio: Yes - missing hygristor, thermistor

Finish

WHITE CASING/ MULTICOLOURED SYNTHETIC PARTS/ METALLIC, PLATED, & GOLD COLOURED PARTS

Decoration

N/A