Bonch-Bruevich Tube 1.5

Bonch - Bruevich tube is a tube exciter. Use it to add higher harmonics to the incoming signal. It makes the sound more detailed. Good for guitars, vocals and synths.
Put the file bbtube1-5.dll in the folder with your VST instruments.
Download the plugin is free.
Supplied "as is". The program was tested in vsthost-1-54-32 under Windows 8.1 (in compatibility mode for Windows XP).