_sidebar.md

@@ -268,3 +268,9 @@
 #### [Laser Safety](Laser Safety)
 
 #### [Abandoned](Abandoned Page)
+
+##### Tools
+
+[![svi](uploads/1bfdff0b5f8fd9fe8c4a40fccc75380d/svi.jpg){width=10%}](https://svi.nl/Nyquist-Calculator) 
+
+[![fpbaselogo](uploads/d5bba518c5283261afb424f41d966be1/fpbaselogo.png){width=10%}](https://www.fpbase.org)