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Author Topic: Replacement of 6146B tubes with 6293 tubes in a TS  (Read 3801 times)
KA1MUY
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Posts: 10




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« on: May 05, 2003, 03:16:50 PM »

I would like someone to give me some advice on replacing the stock 6146B tubes in the Kenwood TS-830 with RCA 6293's.  They appear to be more rugged and capable of extremely long life.
Any thoughts?
Scott
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WB2WIK
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Posts: 21837




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« Reply #1 on: May 05, 2003, 05:31:44 PM »

They might work, although the "word" back in the 1980's when the TS-520/820/830 family were being manufactured was that this substitution wasn't a great idea unless one had a source for free tubes.

Might be tricky to neutralize with the 6293's, since their interelectrode capacitances are different.  Interestingly, I cannot imagine why I'd look for "longer lasting" tubes in the TS-830S, which treats the tubes very well.  I had the original set of Japanese S2001's in my TS-830S when I sold it after twelve years of heavy use, nearly daily, including dozens of contests -- and they still worked perfectly, delivering 100W output just like when they were new.

WB2WIK/6
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