2) Woy ye 5. Increased safety to engine-room staff, owing to To investigate P. D. wave forms the terminals B and C absence of reciprocating parts. are connected directly to the poles of say a 100 or 110- 6. Perfect balancing of engines, which permits of volt circuit. This can be done conveniently… … CURRENTS, the lamp terminals D, # from B C and to connect them PORTABLE OSCILLOGRAPH. to an independent 100-volt circuit and to earth one BY THE LONDON CORRESPONDENT OF THE SCIENTIFIC AMERICAN. A convenient and handy little apparatus for utili- of the terminals B, C, as it is not safe to use the…
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