User contributions
- 01:34, 15 February 2018 (diff | hist) . . (-69) . . Electronics Related Blogs (Undo revision 3714 by 122.161.163.111 (talk) spam)
- 23:03, 13 October 2017 (diff | hist) . . (+99) . . Electronics Books (Undo revision 3673 by 46.42.250.204 (talk))