Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 285
j2^^MZ^^2^ ^ s Oa O O ^O 1 r ^ ri;. ^■f^- Fieid Ma^nt.ti … Cener«.to Pi,ATE XVI.—Van Depoeles twocoil D C polyphase transformer. 18S2. fact that where a pressure transformation and species trans-formation are found desirable in one machine, the induc-torium or stationary form with rotating commatator isdeemed preferable. We need not therefore delay longer…
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