Nixie tube VU meter
posted Mar 27th 2008 11:01am by Will O'Brienfiled under: home entertainment hacks

[Daniel] sent in his Nixie tube VU meter. It uses 14 Russian IN-13 Nixie bar-graph tubes. He built a custom circuit to amplify, filter, smooth and feed a voltage divider to assign signal levels to segments and finally some high voltage transistors to drive the tubes. The circuit looks pretty big, but it’s repeated for each tube – so he worked hard to keep the cost down as much as possible. Now this just needs to live on the front of a massive tube amplifier.





Are Russian nixie tubes in a massive surplus or something?
Posted at 12:54 am on Mar 28th, 2008 by Sp`ange