Vacuum Tube - 6BE6 / EK90, Heptode
New-Old-Stock (NOS) tube.
The 6BE6 is a miniature heptode primarily designed to perform the combined functions of the mixer and oscillator in superheterodyne circuits in both the standard broadcast and FM bands. Its performance in these applications is characterized by high conversion gain and a high degree of oscillator stability with variations in the applied automatic-volume-control bias voltage.
Except for heater ratings, the 3BE6 and 4BE6 are identical to the 6BE6.