This tube was developed at the G E laboratories in October 1920 and the type number was assigned to it in the summer of 1923. It was also announced to the public at the same time. 50 Watt output. Thoriated tungsten filament. Mu 25, 15MHz.
Dimensions (l x h x p) incl.pins/tip
x 191 x 51 mm / x 7.52 x 2.01 inch
Prix
3 Prix (visible pour membres seulement)
Bibliographie
Tube Lore (II) p.29
Saga of the Vacuum Tube, Tyne p. 325 - 327
