Tube tester

A local dealer has an Orange as well as a couple of TV7’s.  The Orange is much easier to use because you don’t have to set various tube parameters (about as easy as the Amplitrex I own).  I don’t know what it is testing; I hope it is transconductance if it is only testing one thing.  What I do know is that, for many tube types, it will show a poor reading where the TV7 indicates that the tube is strong.  It appears to be a tough grader.  The Orange might indicate a tube is weak when it is not so because it often does not fully warm up the tube before testing.  What you have to do is re-test the tube immediately after completing a test to see if the tube improves enough to be good.  Aside from this quirk,  it seemed to be a decent device for testing most common tubes.  It is not an Amplitrex, but it costs a lot less.

Tube tester = Uncle Fester (Had to be said)

BTW, The link works on my end.

Norton must be feeling overly cautious tonight.

I seem to run across tube testers for $200-$300. Why $1,000 for this one?

posted 5 days ago, $200. CAD = $150. USD