The tube bias calculator - the plan

What I plan to do is build a dual real-time voltmeter and calculator with an arduino. I’ll connect both the plate and cathode probes to arduino analog input pins to read each voltage. The program will do the calculation (multiply one times the other) and display the results as well as the percentage of dissipation according to what type of tube it is.

I’ll need an enclosure to house it in and a way to connect the bias probes. I’ll also need a screen and some way to control the program via a GUI. I was thinking about use a joystick, but now I think an IR remote control would would better.

I’ll need to write the GUI code and build a database of common tube types and their idle settings as well as have the ability to punch in custom numbers.