Corrections, Updates and Feedback for: DIY Temperature Controlled Solder Station, ElektorLabs magazine 1/2019, p. 14 (180348) Power Outage Detector with Text Messaging, ElektorLabs magazine 5/2018, p. 12 (180344) Lighthouse 2.0, ElektorLabs magazine 1/2019, p. 24 (180334) Alarm with 3-way Display, ElektorLabs magazine 6/2018, p. 82 (170112) Experimenter’s Transistor Tester, Elektor magazine 2/2015 (March & April), p. 56 (130544)