EL34 vs 6CA7 – What is the Difference?

EL34 vs 6CA7EL34 vs 6CA7: Spoiler alert: there’s not much difference and they are, indeed, completely interchangeable.

EL34 vs 6CA7: two power tubes that can cause a lot of confusion when purchasing replacements, because they’re very similar and are, in fact, replacements for one another. They do, however have different internal designs, and they’ve changed slightly over the years.

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