User contributions
- 19:03, 25 May 2010 (diff | hist) . . (+28) . . Sanyo Power Amplifier
- 18:56, 25 May 2010 (diff | hist) . . (+30) . . Nordmende Amplifier
- 18:50, 25 May 2010 (diff | hist) . . (+28) . . Siemens Amplifier
- 10:57, 25 May 2010 (diff | hist) . . (+316) . . Category talk:Manufacturer (current)