000			00406pam a2200145a 44500
082			_a621.3815 _bT795m
100			_aTucker, David Gorda
245	1		_aMODULATORS AND FREQUENCY-CHANGERS FOR AMPLITUDE-MODULATED LINE AND RADIO SYSTEMS
260			_aLondon _bMacdonald _c1953
300			_a232
650			_aModulation (Electronics)
650			_aFrequency Changers
964			_gCIRC
997			_a3613 s C
999			_c407725 _d407725