› Forums › Spectroscopy › Alpy 600 Calibration › Hi Andy
17 May 2018 at 7:11 pm
#579502
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
4200.67A looks to be a blend in my lamp spectrum and H alpha has completely disappeared from my lamp now
Cheers
Robin