I don't see anything the datasheets for both tubes that mentions maximum
exhaust heat.
The maximum ceramic/metal seal and anode core temp is 250 degrees C for
the 8877, same for the 4CX1000A.
On 8/28/2015 12:12 PM, Big Don wrote:
Any data available on this? As measured above the fins or exit of
chimney....
Don N7EF
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R. Kevin Stover
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FISTS #11993
SKCC #215
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