De Forest / Moorhead type AP "Atlantic-Pacific" rectifier tube
date: label: date made
content: ca 1924
name: label: maker
content: Moorhead Laboratories
notes: label: Description (Brief)
content: A 4-pin base with brass shell, plastic insulator, tipped G-shaped envelope with neck. "S" molded on base insulator. Later version of the AP rectifier shows enclosed grid and filament. Reference: Tyne, "Saga of the Vacuum Tube," page 176-178.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.322859
label: catalog number
content: 322859
label: accession number
content: 241556
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 5 1/8 in x 2 1/4 in; 13.0175 cm x 5.715 cm