Click on following links to view posts on amateur astronomical spectroscopy on the website of Rosliston Astronomy Group:

All relevant posts:

https://roslistonastronomy.uk/category/spectroscopy

Posts related to the use of the CCDSPEC Spectrometer made by Ken Elliott:

https://roslistonastronomy.uk/category/spectroscopy/ccdspec-spectrometer

Posts related to the use of the Science Surplus DIY Spectrometer:

https://roslistonastronomy.uk/category/spectroscopy/diy-spectrometer