Electro-Harmonix EL34EH - factory-matched quad - This is a factory-matched quad of Electro-Harmonix EL34EH tubes. I find it interesting that one tube is about 1/4" taller than the others! Still, (acording to the factory) these are absolutely PERFECTLY matched.
Electro-Harmonix EL34EH - factory-matched quad - This is a factory-matched quad of Electro-Harmonix EL34EH tubes. I find it interesting that one tube is about 1/4" taller than the others! Still, (acording to the factory) these are absolutely PERFECTLY matched.
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