Use these Visio component stencils (also called shapes) to generate a professional looking system block diagram with as much - or as little - detail as you like.
Built on the Visio grid to guarantee alignment. All components are original. This product has been tested with Visio versions 4.0 through 2003.
Click here for EIA Rack & Test Equipment stencils
Click here for RF Block Diagram stencils
Here is a small sample of what you will be receiving. Note the consistent formatting. Edit values the same convenient way as with all other Visio components. See all 24 tube bases here.
vacuum tube chapter from the Basic Navy Training Course NAVPERS 10622.