Collection:
Juneau—Douglas City Museum
Object ID:
2003.39.009 AB
Accession#:
2003.39
Credit Line:
Donated by the Juneau Icefield Research Project.
Object Name:
Tube, Vacuum
Title:
Two Vacuum Tubes
Date:
1950
Description:
A — Ken—Rad tube 5.25 inches by 2.25 inches with seven metal prongs on round base, tube flaring to wide shoulder then straight—sided cylindrical top with slight dome. Bottom third of tube is reflective, upper third is black.
B —Sylvania vacuum tube 4.5 inches by 1.75 inches x 1.75 inches with seven metal prongs on round base. Tube has same shape as "A" but is smaller, has no reflective area, and black area does not extend to top.
B —Sylvania vacuum tube 4.5 inches by 1.75 inches x 1.75 inches with seven metal prongs on round base. Tube has same shape as "A" but is smaller, has no reflective area, and black area does not extend to top.
Notes:
See3 2003.39.001
May have been used in radio (2003.39.005) or other ex—military equipment.
May have been used in radio (2003.39.005) or other ex—military equipment.
Search Terms:
T&E
Communication
Radio
Communication
Radio
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Two Vacuum Tubes
Two Vacuum Tubes
Two Vacuum Tubes
Two Vacuum Tubes