A glass electrode pH meter using a vacuum tube voltmeter

1963 ◽  
Vol 40 (2) ◽  
pp. 85
Author(s):  
Harold E. Brower
Keyword(s):  
Glass Electrode ◽  
Vacuum Tube ◽  
Tube Voltmeter

Design of a High Impedance Vacuum Tube Voltmeter for Use in the Radioisotope Laboratory

Radiology ◽  
1966 ◽  
Vol 87 (2) ◽  
pp. 357-358
Author(s):  
Carl R. Bogardus ◽  
Seymour H. Levitt
Keyword(s):  
Vacuum Tube ◽  
High Impedance ◽  
Tube Voltmeter

A Line-Operated Vacuum-Tube Voltmeter

1935 ◽  
Vol 7 (5) ◽  
pp. 341-342 ◽  
Author(s):  
R. L. Garman ◽  
M. E. Droz
Keyword(s):  
Vacuum Tube ◽  
Tube Voltmeter

Vacuum tube voltmeter

1958 ◽  
Vol 35 (2) ◽  
pp. 77-77
Author(s):  
Marconi Instruments Ltd.
Keyword(s):  
Vacuum Tube ◽  
Tube Voltmeter
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