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  • Terms: United States
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undetermined vacuum tube

undetermined vacuum tube

American
1900-1950
discharge tube

discharge tube

American
1900-1930
discharge tube (unprepared)

discharge tube (unprepared)

American
1900-1930
part of triode

part of triode

American
1900-1930
Strobonar 62-A

Strobonar 62-A

Heiland Research Corporation
circa 1950
thyratron tube, type KU-676

thyratron tube, type KU-676

Westinghouse Electric & Manufacturing Company
1920-1940
EAC R-390A / URR radio receiver

EAC R-390A / URR radio receiver

Electronic Assistance Corporation
1960-1965
Tolles 1/2 inch objective belonging with the Zentmayer microscope

Tolles 1/2 inch objective belonging with the Zentmayer microscope

Robert B. Tolles
1871
collection of 40 Tolles workshop tools, eyepieces, and objectives

collection of 40 Tolles workshop tools, eyepieces, and objectives

Robert B. Tolles
1860-1874
silver dry cell battery

silver dry cell battery

1880-1900
Curay light applicator

Curay light applicator

Macalaster Bicknell Company
circa 1930
parts box holding Tolles workshop objects

parts box holding Tolles workshop objects

Robert B. Tolles
1875-1900
/ 755

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