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Thread Starter 
Hello all,
How do you tell an electro harmonix 6922 EH type 2 from a type 3 Tube ? I do not have the boxes. They are the new tubes from Russia. Mine have a ring getter supported on two sides by rather thick posts. Under made in Russia is 13 04. The date stamp I assume ? Using two of these in a phono amp.
And what are the tone differences of the two types ?
Thanks for any help.