This tube is made with UX4, UV199 and B4 base. It was in fact an UV/UX199 replacement. The most common version has a B4 base and a different envelope. See datasheet.
Dimensions (l x h x p) incl.pins/tip
25 x 79 x 25 mm / 0.98 x 3.11 x 0.98 inch
Poids
21 g / 0.74 oz
Bibliographie
- - Manufacturers Literature R38H 1-12-1925
-- Collector info (Sammler)
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
