This VU meter uses Nixie tubes as the display. There are a total of fourteen IN-13 bar graph tubes that map out the audio spectrum. The build uses purely hardware for the display; no ...

3. Click on "Insert" in the top toolbar, then click on the Bar Chart icon in the Charts group. 4. Go to "2-D Bar". There is also an option below it to create the bars in "3-D" to add some depth to ...