Vacuum Tube - 6BA6 / EF93, Pentode, Remote Cut-Off
New-Old-Stock (NOS) tube.
The 6BA6 is a miniature remote-cutoff pentode primarily designed for use as a high-gain radio-frequency or intermediate-frequency amplifier. Features include small size, low grid-plate capacitance, and high transconductance.
Except for heater ratings, the 3BA6 and 4BA6 are identical to the 6BA6.