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Description
Raytheon VT255 mounted on circular wooden base, c. 1924. "JAN CRP705A VT255 Raytheon V9140" printed on the glass. The VT255 is a 30kV@50ma half-wave rectifier with a 5V filament.
Type
image
Identifier
A929E7AF-5FD3-4D49-A3EE-038928122613 2003-1-195
Subject
Vacuum-tubes Electric current rectifiers Nineteen twenties
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