DocumentCode
1177984
Title
A High-Frequency Sweep Circuit
Author
Goldsmith, T.T., Jr. ; Richards, L.A.
Author_Institution
Department of Physics, Cornell University, Ithaca, N.Y.
Volume
23
Issue
6
fYear
1935
fDate
6/1/1935 12:00:00 AM
Firstpage
653
Lastpage
657
Abstract
A linear high-frequency sweep circuit for the cathode ray oscillograph is described. It employs a linearly charged condenser periodically discharged by a hard tube, the grid of which is biased past cut-off except for short periods when it is driven positive by an auxiliary oscillator. The frequency of this oscillator is made commensurable with that of the unknown wave form to be investigated. The circuit is particularly adaptable for high frequencies, photographs of alternating voltages of frequencies up to twelve megacycles being shown.
Keywords
Batteries; Capacitance; Cathode ray tubes; Circuits; Electron tubes; Feeds; Frequency; Oscillators; TV; Voltage;
fLanguage
English
Journal_Title
Radio Engineers, Proceedings of the Institute of
Publisher
ieee
ISSN
0731-5996
Type
jour
DOI
10.1109/JRPROC.1935.226396
Filename
1685911
Link To Document