Vacuum Tube - 6BN8, Dual Diode, Triode
New-Old-Stock (NOS) tube.
The 6BN8 is a miniature, high mu triode, double diode intended for application in color and monochrome television receivers. The tube features separate cathode connections for each section and controlled heater warm-up time to insure dependable operation in series string receivers.
The 6BN8 is identical to the 8BN8 except for heater characteristics.