It's green and has 'tube' in the name, so you've already guessed what this does, right? It shares the JRC 4558 chip that drives Ibanez TS808, so this does the job well. Handy little low-gain mid-hump drive for not many dollars and not much real estate.

Model: Valeton Tube Engine Vintage Overdrive
Made: China, recent model
Type: overdrive, Tubescreamer voiced
Power: standard 9v supply, 10mA draw approx
Switching: true bypass
Equivalent new street price (approx): $79aud
Mods: none
Accessories: original box and docs
Condition notes: used, no major marks, excellent condition