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Triode connecting 4-400's...?




 
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Author Topic: Triode connecting 4-400's...?  (Read 5878 times)
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WB1AEX
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« on: January 22, 2005, 11:25:16 AM »

I am curious about the best way to go about this when subbing out a pair of 3-500's in an RF linear.  I have searched around and found that some say to simply tie the grid and screen together and be done with it.  Others tie the grid and screen together through a small resistance of 10 ohms or so, claiming it is easier to drive and is more linear.  Not sure about that one.  A few have suggested connecting the screen to the plate.  That sounds like a recipe for a flashover from screen to grid but I guess some have had success with it.  Anyone tried any of the above with success?

Thanks for sharing any experiences or for any suggestions,

Rob WB1AEX
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WA1GFZ
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« Reply #1 on: January 22, 2005, 08:50:33 PM »

Rob,
Just plug them in. The gain will be a tad lower. I know a guy who did this and IRan a 4-1000A that way for years. fc
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WA1HZK
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Yup
« Reply #2 on: January 22, 2005, 10:24:52 PM »

Strap the grid & screen together. Works pissa. Cheaper than a pair of 500's when you have a box full of 400's.
Keith
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