Skip to main content
Advanced Search
Audio-Oscillator, Type 203
Audio-Oscillator, Type 203

Audio-Oscillator, Type 203

Inventory NumberRS0657
ClassificationOscillator
Subject
    Maker General Radio Company ? 1915-present
    Dimensions9 x 12 x 16 cm, 3 lb. (3 9/16 x 4 3/4 x 6 5/16 in., 1.4 kg)
    DescriptionAudio-Oscillator, Type 203. General Radio-Cruft
    Signedetched and white filled on top panel: AUDIO OSCILLATOR / TYPE 203 / GENERAL RADIO CO. / CAMBRIDGE, MASS.
    Historical AttributesCruft
    Audio instrument, oscillator. Large rectangular body, wood frame on sides, black front panel and decorative grill on to pand back. On front panel, large dials, circular window for meter, pair of electrical connectors, indicator light and switches.
    Audio instrument, oscillator. Large rectangular body, wood frame on sides, black front panel and decorative grill on to pand back. On front panel, large dials, circular window for meter, pair of electrical connectors, indicator light and switches.
    General Radio Company
    Date: 1939
    Object number: RS0452
    audio oscillator
    audio oscillator
    General Radio Company
    Date: circa 1930
    Object number: RS0198
    GR type 381 vacuum tube oscillator
    GR type 381 vacuum tube oscillator
    General Radio Company
    Date: circa 1930
    Object number: RS0252
    GR type 700-A beat-frequency oscillator
    GR type 700-A beat-frequency oscillator
    General Radio Company
    Date: 1939
    Object number: RS0409
    audio oscillator, 600-Hz
    audio oscillator, 600-Hz
    General Radio Company
    Date: 1925-1930
    Object number: WJ1235
    Wireless Specialty Eaton Oscillator type triode C.
    Wireless Specialty Eaton Oscillator type triode C.
    Wireless Specialty Apparatus Company
    Date: 1919
    Object number: RS0830
    Low Frequency Oscillator 377-B
    Low Frequency Oscillator 377-B
    General Radio Company
    Accessories: 1 battery (removed during FAE inventory, 2011).
    Object number: RS0260
    GR type 816-B 60-cycle vacuum-tube precision tuning fork
    GR type 816-B 60-cycle vacuum-tube precision tuning fork
    General Radio Company
    Object number: RS0614
    Beat Frequency Oscillator
    Beat Frequency Oscillator
    General Radio Company
    Object number: RS0451
    beat frequency audio oscillator
    beat frequency audio oscillator
    General Radio Company
    Date: circa 1930
    Object number: WJ0618
    Image Not Available for Beat-Frequency Audio Oscillator
    Beat-Frequency Audio Oscillator
    General Radio Company
    Date: circa 1938
    Object number: WJ0330
    audio-frequency oscillator
    audio-frequency oscillator
    Hewlett-Packard Company
    Date: 1940-1945
    Object number: WJ1073