Larry, have you cleaned the tubes recently? Dust and grime could be
blocking the airflow. I clean the 8877s and 3cx800a7s in my station by
running them through the dishwasher.
Sent from my iPhone
> On Oct 17, 2016, at 9:46 AM, Larry Williamson <firstname.lastname@example.org> wrote:
> I have a 2500dx that has ran great over the years. Here is the issue now----I
> was running about 800 watts rtty and all of a sudden the amp shut off, just
> like you turned the switch off. Wondering what the heck happened and
> completely stunned, after about 2 minutes it turned back on.
> Switching over to the dummy load it did the same thing? Different bands do
> the same thing. So I set an external fan on top of the amp to help remove
> some of the heat from the interior.
> Typically the temperature at the tubes run about 140- 155 degrees Fahrenheit
> @ 800 out rtty. So again, same setup with the external fan helping to remove
> some heat-The amp runs great.
> It appears that something is heating up from excessive heat and shutting off
> the amp. The internal fan appears to be working normally.
> Any input from others is appreciated!
> Amps mailing list
Amps mailing list