Agilent 1951-06 free download

File name 1951-06.pdf

HEWLETT' PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S VOL. 2 No. 10 BLISHED BY THE HEWLETT-PACKARD COMPANY, 395 PAGE MILL ROAD, PALO ALTO, CALIFORNIA JUNE, 1951 A New Generator of Frequencies Down to 0.01 CPS INNcontrast to ever-wideninguses ofof higher by a panel switch. Also provided is a syn- contrast to ever-widening uses higher a n d higher rfrequencies,emuch work o r k g o e s c h r o n i z i n g p u l s e f o r t r i g g e r i n g e x t e r n a l and h i g h e f r e q u e n c i s , m u c h w goes on in that portion of the spectrum lying be equipment. low the audio range. Medical, geological, Output voltage from the instrument has servo, and vibration studies are all con been made ample for general-purpose work. cerned with sub-audio frequencies. Servo For all three waveforms, a maximum of at applications in particular involve unusually least 30 volts peak-to-peak is provided. The low frequencies