PWR TET
Inventory NumberVT0473
ClassificationVacuum Tube
Maker
AudioTron Sales Company
1915 - 1920
Dimensions11.7 × 5.5 × 5.5 cm (4 5/8 × 2 3/16 × 2 3/16 in.)
AudioTron Sales Company
Date: 1920-1930
Accessories: red cardboard cylinder case
Object number: VT5194
AudioTron Sales Company
Date: 1916-1920
Object number: VT0249
Columbia Electronics Sales Company, Div. of Columbia Broadcasting System, Inc..
Object number: VT4841
Columbia Electronics Sales Company, Div. of Columbia Broadcasting System, Inc..
Object number: VT4842
Tavella Sales Company
Date: copyright 1934
Accessories: black leather case with snap closure, instruction manual (in file)
Object number: 2003-1-0244
Tavella Sales Company
Date: dated 1944
Accessories: brown fabrikoid case; postmarked order form and advertisement for Mascot slide rule
Object number: DW0968
Tavella Sales Company
Date: copyright 1934
Accessories: instruction booklet (in filet); semicircular black fabrikoid case
Object number: 1990-4-0001
American Automatic Sales Company
Date: 1910-1920
Object number: 1989-0005
Air Reduction Sales Company
Object number: RS0618
