I acquired these tubes from NASA's Marshall Space Center in Huntsville, Alabama forty-five years ago. They have been in storage since. These were used as pass regulator tubes in a regulated power supply and never used in an audio amplifier, so problems like bad bias/coupling capacitors damaging the tubes is not an issue. They have three getters, top and side and test like NOS in my calibrated TV-7. The tubes are identical and have matching date codes of #3225813.
$475
Thank you for looking.
