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Thread: tesla re025xa vs 4cx250b

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    Aardvark's Avatar

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    tesla re025xa vs 4cx250b

    Has anyone tried replacing 4cx250b/r with tesla re025xa tubes? If so what was your experience?
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    I replaced mine with 4cx350f. Worked great. Good luck.
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    The 350f I believe has a heater voltage of something like 26v. The 250b/r & re025xa have a 6v filament.
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    I have used alot of the Tesla Tubes just burn them in for 24 hrs and they work great 750-1000 watts usually
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  1. 4cx250b
    By Thumper in forum Tube Amps
    Replies: 3
    Last Post: 11-15-2012, 10:13 AM

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