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Variable Inductance Coil
Variable Inductance Coil

Variable Inductance Coil

Inventory NumberRS1314
ClassificationInduction Coil
Subject
    Maker George Washington Pierce 1872 - 1956
    Dimensions20 x 34 x 19.1 cm, 7 lb. (7 7/8 x 13 3/8 x 7 1/2 in., 3.2 kg)
    DescriptionVariable Inductance Coil, Super Sonic Shelf.
    Signedunsigned
    variable inductance
    variable inductance
    George Washington Pierce
    Date: circa 1905
    Object number: 0520
    Coil
    Coil
    George Washington Pierce
    Object number: RS1309
    Box containing 1 speaker and misc. wireless parts and coils
    Box containing 1 speaker and misc. wireless parts and coils
    George Washington Pierce
    Object number: RS1315
    Modulated Sonic Oscillator, No. 4
    Modulated Sonic Oscillator, No. 4
    George Washington Pierce
    Date: date 1939
    Object number: RS1312
    ultrasonic shelf double speaker
    ultrasonic shelf double speaker
    George Washington Pierce
    Date: circa 1938
    Object number: RS1308
    Wooden Box, Cable? Entry at Each End
    Wooden Box, Cable? Entry at Each End
    George Washington Pierce
    Object number: RS1318
    Unknown
    Unknown
    George Washington Pierce
    Accessories: 2 batteries (removed during FAE inventory).
    Object number: RS1320
    Pierce Flash Relay, H.E. Rawson
    Pierce Flash Relay, H.E. Rawson
    George Washington Pierce
    Object number: RS1321
    Variable Inductance
    Variable Inductance
    George Washington Pierce
    Date: circa 1906
    Object number: RS1242
    inductance coils
    inductance coils
    Department of Physics, Harvard University
    Date: circa 1927
    Object number: 0478
    inductance substandard
    inductance substandard
    Department of Physics, Harvard University
    Date: circa 1895
    Accessories: goes together with coil # 0494
    Object number: 0493
    inductance standard
    inductance standard
    Department of Physics, Harvard University
    Date: circa 1915
    Object number: 0479