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> Hp agilent 8690A sweep oscillator mainframe works nice
Hp agilent 8690A sweep oscillator mainframe works nice
HP Agilent 8690A Sweep Oscillator Mainframe Works! Nice
"A short description of the 8690 from the 1967 catalog:
"The Hewlett-Packard 8690A Sweep Oscillator and 8690A/B Series RF Units offer all the advantages of single unit sweep oscillators plus economical multiband capability. The 8698A RF Unit sweeps the range of 100 kHz to 110 MHz with outstanding frequency accuracy and linearity. Complete coverage from 1 to 40 GHz is available with RF units featuring a choice of PIN diode modulation ("B" models), grid modulated BWO units ("A" models), and optional internal leveling.
RF units can be changed quickly and without adjustment. Snap-in scales are keyed for easy changing and accurate positioning. The full width maximum resolution scale and a human engineered layout of the front panel controls allow simple, uncomplicated operation. Ease of operation is enhanced by pushbutton function selection, lighted function indicators adjacent to the scale, presentation of all frequency information which may be read at a glance, and simplified X-Y recorder setup through the use of manual sweep control. Highly accurate, calibrated frequency displays, broad and narrowband sweeps, external FM for frequency sweep programming, CW operation, automatic triggered or manual sweep control plus leveling in all modes of operation combine to give unequaled performance and versatility in a space saving package design.
Four types of RF units are available, permitting selection to meet any application requirement: the Model 8698A low frequency signal generator; the Models 8691-4A/B featuring PIN modulation or grid modulated BWO's and covering the coaxial frequencies from 1 to 12.4 GHz; and the Models 8695-7A for waveguide coverage of the P, K, and R bands. "
