DocumentCode
1090878
Title
Measurement of Vacuum-Tube Capacities by a Transformer Balance
Author
Wheeler, Harold A.
Author_Institution
Hazeltine Corporation, Hoboken, N. J.
Volume
16
Issue
4
fYear
1928
fDate
4/1/1928 12:00:00 AM
Firstpage
476
Lastpage
481
Abstract
A complete, portable equipment is described for the measurement of the direct capacities of vacuum tubes in laboratory or factory testing. The tube capacity is compared with a standard variable condenser by means of a transformer-balance (Neutrodyne) circuit, whose balance is independent of the frequency (about 1600 kc. being preferred). Designs are proposed for the standard condenser and the transformer, and suggestions are made for the further improvement of this equipment.
Keywords
Assembly; Batteries; Circuit testing; Detectors; Electron tubes; Laboratories; Manufacturing; Oscillators; Production facilities; Radio frequency;
fLanguage
English
Journal_Title
Radio Engineers, Proceedings of the Institute of
Publisher
ieee
ISSN
0731-5996
Type
jour
DOI
10.1109/JRPROC.1928.221422
Filename
1670009
Link To Document