NO, itv should not for that length of time. They usually burn in the tubes for longer than that. Rob K1DFT
On Sat, Nov 7, 2020 at 1:51 PM William Morton <w_b_mor...@hotmail.com> wrote: > Hello Everyone, > > My son and I have a question regarding firing up the filament of a 4-65A > tube with no connection to the grid or plate (and no plate cap heat sink, > either): If we light up the filament and leave it glowing for a long time, > is there any danger to the tube? It would be akin to using it as a > nightlight (which we are not). By a 'long time', let's say 5 hours. > > Thanks in advance for any comments. > > Best Regards, > > William, and Son > _______________________________________________ > Boatanchors mailing list > Boatanchors@puck.nether.net > https://puck.nether.net/mailman/listinfo/boatanchors > -- Robert Vincent DLM Antenna Technology 401-487-3933 This E-mail message and any attachments may contain legally privileged, confidential or proprietary information. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this E-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this E-mail message from your computer. The world will not be destroyed by those that do evil but by those who watch and do nothing. Albert Einstein. "America does not need to see the tax returns of a billionaire who became a public servant. America needs to see the tax returns of public servants who became millionaires while being public servants" Jaeson Lubell _______________________________________________ Boatanchors mailing list Boatanchors@puck.nether.net https://puck.nether.net/mailman/listinfo/boatanchors
