"Putting the FUN back in Hi-Fi, one triode at a time!"

       Build your own Tube Tester!

Are you a "Do-It-Yourselfer"? Do you have power supplies and signal genrators around your lab bench? Then you can easily build your own tube tester with DIYTRIODE's Mutual Conductance modules. 

How good is the electronic tube you are using? DIYTRIODE provides high quality, sensitive, and accurate circuits to measure the Mutual Conductance of an electron tube. Over 10 years have gone into the development of an easy to use, simple one button "Push-To-Test" circuit that is compatible with any 500 uamp or less current meter. 

Please browse the website and email any questions you have. DIYTRIODE can provide the hobbyist and professional with affordable Mutual Conductance test circuits that are simple to install in your own test equipment. DIYTRIODE can also supply fully assembled test equipment.

Two modules are currently available. The Basic Module is a cost effective Mutual Conductance measurement circuit for those whom already have plate and grid bias supplies, and grid signal generator. The Basic Module with Grid Signal provides an additional 200 mV signal for driving the grid of the tube under test.

  Basic Module (shown with optional Banana jacks)

Basic Module with Grid Signal (shown with optional Banana jacks)