I recently acquired a very clean and working Triplett 3444 tube tester.
The case is in very fine condition as is the unit itself. The old
metallic rectifier stacks have been replaced. This unit has 2 accessory
tube adaptors with it as well as the book. The roll-chart is in perfect
shape. The only "problem" is that one has to let it warm up (although
the book does say it requires 15 minutes). Looking to trade for a
like-condition TV-7D or negotiate for a TV-2. Thanks.