cathode, filament, and grid from Raytheon 24A vacuum tube
Date: 1922-1930
Inventory Number: VT5198
Classification: Vacuum Tube
Dimensions:0.3 x 2.9 x 0.4 cm (1/8 x 1 1/8 x 3/16 in.)
case: 4 x 3.6 x 3.6 cm (1 9/16 x 1 7/16 x 1 7/16 in.)
Accessories: red cardboard cylinder case
Description:
Three elements of an amplifier vacuum tube: the cathode which is a thin metal tube; the grid, which consists of a pair of parallel metal rods with a thin wire wound around them in spiral; and the cathode heating filament, which is a ceramic rod with two electrical connectors.