Inside every VFD is a filament, grid, and cathode – three simple elements also found in the triodes of just about every tube amp ever made. By applying a small voltage to the filament ...
This recent installment of the EEVblog reverse engineers this VFD. The function of these displays is pretty easy to understand, and [Dave] covers that early in the video after the break.
What is a variable frequency drive? Heating, ventilation, and air conditioning systems' air supply used to be constant volume into a space. Now a variable air volume control is being used to provide ...
Once the weather gets warmer, they’ll move the training to the lake. Brunk said the boat isn’t just for Moffett VFD, but other agencies in the county will benefit from it as well.
A fire on Chapman Highway caused lane reductions, with Seymour VFD responding to the scene involving a structure and vehicles ...