Vacuum Tube - 6FH5, Triode, HF
New-Old-Stock (NOS) tube.
The 6FH5 is a neutrode triode tuner in the 7 pin miniature construction. It is designed for use in grounded cathode RF amplifiers, with the neutrode construction providing a lower grid to plate capacitance with consequent ease of neutralization. The conventional grid results in low input capacitance.