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Old 1st May 2008, 07:02 PM   #1
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Join Date: Nov 2006
Default Putting serial number on tubes

I have a ton of tubes for my amps. I now have a nice new tube tester and want to record the test results for each tube. I figure I'll keep the results on a spreadsheet and reference the tube by a number. It is easy for me to label the base of an 8 pin tube, but how can I put on something semi permanent onto a little 9 pin preamp tube, that won't screw with the tube or get mucked up by heat?

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Old 1st May 2008, 07:39 PM   #2
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Join Date: Aug 2006
Location: Taxland, New Jersey
Tektronix used a simple paper label on their tubes that seems to hold up under the heat. I thought it might be metal foil, but close inspection confirms that it's just paper.
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Old 1st May 2008, 07:56 PM   #3
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duh? I feel silly. Your reply made me think of the label maker I have in the office. I just checked - they say the labels can handle "extreme tempaeratures"


Not quite sure what "extreme" means, but I'll test it on a few (old) power tubes and find out!

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Old 2nd May 2008, 01:13 PM   #4
Sherman is offline Sherman  United States
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Location: Chicago area
Let us know how it works! I've got a Brother label maker and labeling various tubes makes a lot of sense.
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