811A's are used in the well known Ameritron 811 amateur radio amplifier here is a picture of 2 I have up on eBay currently. The one on the right is a little darker. I have heard of welps or welts on tubes can anyone tell if these tubes have been ran too hard? Thanks for any information anyone can share. Thank you
Here are some pictures of mine.
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| What I call the back of the tube. |
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| The Front Made by Electronic Enterprises. Anyone know the age? |
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The top. |
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