[R-390] Re:6082

Drew Papanek drewmaster813 at hotmail.com
Mon Oct 9 19:28:32 EDT 2006



Rick wrote:

>How hot should the 6082 tubes get in my 390?  I just replaced mine with
>NOS and they get HOT!  I know considering their duty they should operate
>hot, but it feels excessive to me.  I have no way of measuring the
>temperature, but thought maybe someone could offer an idea as to how hot
>they should get.

Damn hot.  List member James Bischof reported that the 6082's in his non-A 
set fire to
newspaper covering his workbench.

Lester wrote:

>That is why I advocate an external HV DC supply to run these receivers with
>the tubes pulled, ready for restoration. But no need to let that heat get
>generated and cook the internals when it is not necessary

Another good scheme would be a solid state regulator externally located,
with a cable bringing unregulated power from and returning regulated power
to the radio.   Moves the heat outside.

Drew




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