Tube Testing Service
TubeTerra brings you affordable, laboratory grade vacuum tube testing. We use the Amplitrex AT-1000, the most accurate tube tester in the world.
Standard test -- $2.00 per tube
Our standard tube testing service includes the following:
- current draw (mA)†
- transconductance (Gm)†
- gas current (mA)
- noise/microphonics
- screening for shorts and leakage
We can help you to set up matched pairs or quads of vacuum tubes. Weed out bad tubes.