[Boatanchors] Question for Eimac 4-65A Tube

Robert Vincent robvi3 at gmail.com
Sat Nov 7 13:57:19 EST 2020


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_morton at 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 at 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


More information about the Boatanchors mailing list