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GR type 219-K decade condenser
GR type 219-K decade condenser

GR type 219-K decade condenser

Datecirca 1930
Inventory NumberRS0683
ClassificationCapacitor Box
Subject
    Maker General Radio Company 1915-present
    User Leo L. Beranek born 1914
    User Electro-Acoustic Laboratory, Harvard University 1940 - 1947
    Place of Origin
      Dimensions16 x 35 x 14 cm, 11 lb. (6 5/16 x 13 3/4 x 5 1/2 in., 5 kg)
      DescriptionCondenser Box, General Radio Co., Type 219-K, Ser. #3090, (General Radio-Cruft)
      In Collection(s)
      Signedetched and white filled on top panel, bottom: DECADE CONDENSER / TYPE 219-K SERIAL No. 3090 / GENERAL RADIO CO. / CAMBRIDGE, MASS. U.S.A.
      Inscribedstamped on side: NDRC / 658 /115# (3 or 8) on plate on bottom: ADD 35 (greek letter mu) (greek letter mu) f TO INDICATE VALUE / MAXIMUM VOLTAGE: 300 V. PEAK UP TO 12 KC
      Historical AttributesCruft
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