000 | 00867ngm a2200217 4500 | ||
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001 | 00517097 | ||
003 | PWmBRO | ||
005 | 20240602095938.0 | ||
008 | 850826s1972 enk 000 eng t | ||
090 | 0 | 0 |
_aAV _b621.314/T772 |
245 | 0 | 0 |
_aTransformer core part 1 _ban introduction to materials, a second level course _mvideorecording] |
260 | 0 | 0 |
_a[London] _bProduction for Open University by BBC _c1972 |
300 | 0 | 0 |
_a1 videocassette (Beta) (30 min.) _bB & W _c1/2 in |
522 | 0 | 0 | _aCredits : Film produced by Feranti Ltd.; production by Jim Stevenson |
545 | 0 | 0 | _aSummary : Discusses why transformers are needed in electricity industry and shows the materials used for constructing the transformer core |
650 | 0 | 0 | _aElectric transformers |
710 | 2 | 0 | _aOpen University |
942 | _2ddc | ||
994 | _a001023048 85238 0001 | ||
999 |
_c17284 _d17284 |