The 849 is a 400 watt triode with a mu of 19. Maximum frequency for full power is 3 MHz. Originally designated by RCA as the UV849 in 1928, later examples were marked 849/549 to indicate the de Forest number. The second example is a later RCA. The third example was made by United, the fourth by Sylvania, the fifth by Westinghouse (WL-849) anf the sixth by Amperex.

Length = 14.37" Diameter = 4.06"
Max voltage = 2500
Max current = 300 ma
Fil voltage = 11
Fil current = 5 amps         GOTO INDEX