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Set-Tester (Tube Tester) 777

Set-Tester 777; Superior Instruments (ID = 1682006) Equipment  
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Set-Tester 777; Superior Instruments (ID = 1682006) Equipment
Superior Instruments: Set-Tester 777 [Equipment] ID = 1682006 930x638
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For model Set-Tester (Tube Tester) 777, Superior Instruments Co.; New York (NY)
Country:  United States of America (USA)
Manufacturer / Brand:  Superior Instruments Co.; New York (NY)
Year: 1950 ?? Category: Service- or Lab Equipment
Wave bands - without
Power type and voltage Alternating Current supply (AC)
Loudspeaker - - No sound reproduction output.
Power out
from Model: Set-Tester 777 - Superior Instruments Co.; New
Material Wooden case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 370 x 150 x 280 mm / 14.6 x 5.9 x 11 inch

Tube tester with manual voltage adjustment, 10 valve holders, one 5mA instrument, with added functions for Ohmmeter and AC/DC Voltmeter. Model 777 is a basic emmision tester wich conects every tube as diode, merit of emmision is done in AC conditions with positioning of load reostat to apropriate value.
Main transformer is autotransforming type thus there is no insulation between testing circuit and the power line, so there is a posibility that the chassis may become "hot". The use of a mains separating transformer is highly recomended and could be installed inside of the tester.

This tube testing section is virtually identical to Model 450.

Model page created by Javier Albinarrate. See "Data change" for further contributors.

All listed radios etc. from Superior Instruments Co.; New York (NY)
Here you find 35 models, 35 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.