By Jon Stanley
http://www.electronixandmore.com/project/15.html
This one is almost identical to the Numitron version, but instead this uses a VFD display. As he did for the Numitron version, Jon graciously provides both the schematic and the code for the PIC microprocessor on his site. It uses the same 4-led + tube setup with the LED's indicating the digit currently displayed and the tube showing the value.
All images and video are copyright Jon Stanley.
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