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Author Topic: Question about Amplifier Tube Cooling  (Read 36844 times)
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Steve - WB3HUZ
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« Reply #50 on: March 26, 2005, 11:10:44 PM »

The effects of extended exposure to RF.

Quote from: W8ER
Quote from: Steve - WB3HUZ
Yep, 1 kW is 3415 BTU/h Give a man a fire and he'll be warm for a day; set him on fire and he'll be warm the rest of his life.


Steve, you seem to have a thing for heat!

 :evil:


--Larry
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Jack-KA3ZLR-
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« Reply #51 on: March 27, 2005, 05:42:55 AM »

One of the many subsequent reasons I Like 813's, that Big Current Hogging piece of glass may Look good but, but the relative difficulties in handling, Cooling and feeding makes it not one of my favorites...

They will warm a Room thou.... Cheesy
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WA1GFZ
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« Reply #52 on: March 28, 2005, 08:24:05 AM »

Speaking of cash heat oil cost me $2.16 a friggen gallon last week.
New QTH R66.5 above and R31 in the walls.
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WD8BIL
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« Reply #53 on: March 28, 2005, 08:35:15 AM »

Quote
If so, the plate structure must rely solely on radiation cooling.


You're probably right here Vu. .... for the most part!
I would think the seal and pin temps are also noticably affected by
heat conducted to them from the elements by those little wires !!!!
Particularly the plate and filaments.
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