User contributions
- 15:40, 14 October 2007 (diff | hist) . . (-42) . . Integrated Amplifier
- 15:39, 14 October 2007 (diff | hist) . . (-12) . . Lindemann Amplifier
- 15:38, 14 October 2007 (diff | hist) . . (+12) . . N Lindemann Amplifier
- 15:37, 14 October 2007 (diff | hist) . . (+42) . . Integrated Amplifier