Tube Testing? Home › Forums › Help Needed › Tube Testing? Tagged: Matching, Test, Testing, Tubes This topic contains 2 replies, has 2 voices, and was last updated by Evan Patton 2 years, 1 month ago. Author Posts April 12, 2016 at 8:04 am #4546 Evan PattonParticipant Where can I get tubes (6SN7 & 6AS7G) tested in the Bay Area? Thanks, Evan April 12, 2016 at 8:23 am #4547 AlónKeymaster Here’s your guy. Local, SFAS member, tube guru. firstname.lastname@example.org Roger Modjeski April 13, 2016 at 4:12 am #4548 Evan PattonParticipant Thanks! Author Posts You must be logged in to reply to this topic.