Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 48
Fig. 34. B. A. Ohm. Fig. 35. B. A. Ohm (Chrystals Form). The B. A. form is rather slow to take up changes in temperature; itmust be left in its oil or water bath same time, therefore, to be certain thatit itself has the bath temperature. If supplied with Prof. Chrystals thermo-couple, one leg of…
Electric apparatus and appliances · Equipment and supplies
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