a website collaboration between Science Service and the Smithsonian Institution

glass-blowing lathe with which vacuum tubes are made and heat-treated to withstand high voltages

GLASSBLOWING LATHE

E&MP 44.055

Electricity - High-frequency Voltage

no date

Glass-blowing lathe with which vacuum tubes are made and heat-treated to withstand high voltages.


Original Caption by Science Service
© Carnegie Institution of Washington



National Museum of American History

Home

Search - Site Map - Subjects to Choose From - Numbering Format

Credits - Copyright - Comments