00357nam a2200109Ia 4500008004100000082001700041100002200058245001700080260004000097630002700137650008300164211109s9999||||xx |||||||||||||| ||und||  a537.5bROD-V  aRodgers, Harold A 0aVolume title  bPopular ElectronicsaNew Yorkc1981  xreference reading room  asciencevnatural science and mathematicsxelectricity and electronicsGeneralia