Stromberg-Carlson Pulsed Frequency Modulation Model ETA

Detector, Obstacle

Accession Number: 2007.33.19

Description: Dark olive green enameled aluminum case with brackets on sides for missing shoulder strap; two black insulated wires lead out of front of case from top and bottom to aluminum handled pair of "manetostriction transducers", a device that resembles a flashlight with two heads, conical wooden pieces on their ends; front of case has a sliding on-off toggle on top left with three rotary knobs to right; yellow label in middle, "STROMBERG-CARLSON COMPANY/ROCHESTER, N.Y, U.S.A./MADE IN UNITED STATES OF AMERICA/9019-22"; two more rotary knobs on bottom with three redjacks above the lower left knob; interior of case has upper and lower banks of tubes; upper bank labeled "Sawtooth Osc." and "Supersonic Osc."

Height: 8.5

Width: 5

Depth: 4

Date Made: 1947

Maker: Haskins Laboratories

Place of Origin: New York, NY

Collection: AER O&M Division C. Warren Bledsoe Archives

History/Provenance: AER O&M Division C. Warren Bledsoe Archives

Credit Line: Gift of Association for Education and Rehabilitation of the Blind and Visually Impaired

Subjects: Orientation & Mobility Electronic Travel Aids

Dimension Notes: Case as listed, wires to wand approx 28"; transducer wand is 8.25 x 4.5 x 2.25"

Made: Haskins Laboratories, Stromberg-Carlson

Material: Wood, aluminum, nickel

Exhibit Label: Detector, Obstacle

Updated: 04/29/2014