Tektronix schematic draftsman redrew the engineers schematic for release in the instrument manuals. They must have had some jokers in the group because small cartoons found their way into some of the manuals and schematics. The schematic cartoons are subtle humor likely focused on the names the engineers gave some of the circuits or components. While we think we have found most of the cartoons, every now and then one of our restoration engineers shouts out from his bench that he found another. There are 24 such cartoons here so enjoy the slide show and send us a note if you find one that we have not. We are still looking for the "Pilot Light".
One of the cartoons that was used a lot inside of Tektronix was the Wizard. The museum has a Tektronix Oscilloscope Logo and Wizard Demonstration Generator Board for sale on our eBay store or at the museum.
This is a small (1.2 x 2.5 inches) circuit board with a processor and D-to-A converters that will generate patterns on an oscilloscope operating in XY mode. The patterns are the Tek Bug (with the rectangular CRT) and the Wizard, which appeared on the 454 Tektronix oscilloscope schematics. The two patterns display alternately for a few seconds each. If you are an oscilloscope collector, or enthusiast, this is a great way to show off an analog oscilloscope. A source of 5 volts at about 20mA is required (not supplied).