Vacuum Tube - 6D6, Pentode, Remote Cut-Off
New-Old-Stock (NOS) tube.
Also known by US military identifier VT-69.
The 6D6 is a triple grid variable MU amplifier. It is suitable for use with AVC in RF and IF amplifiers as it minimizes cross modulation. With the exception of capacitances and heater ratings, is electrical characteristics are identical with those of the 6U7G and the 58.