Vacuum Tube - 12BV7 / 12BY7A, Pentode
New-Old-Stock (NOS) tube.
The 12BV7 is a miniature power pentode designed primarily for use as the video output amplifier in television receivers. In application and characteristics it is related to the 12BY7. Like the 12BY7, it features high transconductance, high power sensitivity, and low interelectrode capacitances. It can deliver relatively large output voltages with low values of plate-supply voltage and plate load resistance.