00399nam a22001217a 4500082001100000100003900011245006800050260003800118300003300156490004600189505001800235650002400253  a629.83  aFrost-Smith, E. H. (Edward Hilary)  aThe Theory and Design of Magnetic AmplifierscE. H. Frost-Smith  aLondonbScience Paperbacks c1966  axvii,487 Pagesb22x13 cmbHB  aAutomation and control Engineering Series  aInclude Index  aMagnetic amplifiers