What does the "high gain" option refer to when buying preamp tubes


I received an email from tube depot and I was browsing 6SN7s and noted that one of the options available was "high gain."

Does this mean that selecting that option for a tube would increase gain, or does it mean that selecting that option would be a better tube for preamps/systems that are already high gain?

Or am I cold on both guesses?

Thanks in advance/Matt

 

immatthewj

@yogiboy  , thank you.  Just before you responded I did send them an email.  If they do not respond tomorrow early enough, I will call them before their sale ends.

"High Gain" is just another way for Tube Depot to extract another $2 from a buyer!

Just to follow up on this, I emailed tubedepot and asked them what they meant.  The responded:

The "high gain" option is an additional test that ensures you received the tube with the highest gain that we have available, meaning less early breakup. 

And I emailed them back to say that I really did not understand what they meant,  and to clarify my question as to whether it added or reduced gain, and their replie was::

it only refers to the amount of gain a tube can handle