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Re: Buying replacement tubes


 

Unless specifically noted in the parts list as a sorted or matched item then yes in general any known good 12AX7 should work. Replacement in some circuits "might" require re-calibration? but this is not typical

Dave
manuals@...

On 8/30/2019 3:10 PM, Jamie Ostrowski wrote:

When a tube needs to be replaced in an oscilloscope, will matching the tube number be sufficient, or are there other items to consider about the tubes? For example, if I have a bad 12AX7, will any 12AX7 do, or do I have to get one with the matching D-getter, the right plate color, etc, etc. I look online for a 12AX7, and there are a multitude of variants listed.


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Dave
Manuals@...
www.ArtekManuals.com

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