diff --git a/manual/RedPitaya_Lockbox_manual.tex b/manual/RedPitaya_Lockbox_manual.tex
index 8392bef..4eec230 100755
--- a/manual/RedPitaya_Lockbox_manual.tex
+++ b/manual/RedPitaya_Lockbox_manual.tex
@@ -127,7 +127,7 @@ \subsection{Mounting the RedPitaya on the lockbox PCB}
 \end{figure}
 
 \index{Potentiometer}\marginlabel{Installing the potentiometer}
-The front panel requires a \num{10}-turn potentiometer. This needs to be correctly wired to a \href{Molex KK 254}{} connector on the PCB using three twisted stranded wires. The colour ode of these wires is
+The front panel requires a \num{10}-turn potentiometer. This needs to be correctly wired to a \href{https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/productspecificationpdf/100/1007/PS-10-07-001.pdf?inline}{Molex KK 254} connector on the PCB using three twisted stranded wires. The colour ode of these wires is
 \begin{itemize}
 	\item Black (GND, clockwise/CW)
 	\item Green (wiper/slider/S)
diff --git a/manual/fig/potentiometer_bourns.JPG b/manual/fig/potentiometer_bourns.jpg
similarity index 100%
rename from manual/fig/potentiometer_bourns.JPG
rename to manual/fig/potentiometer_bourns.jpg
diff --git a/manual/fig/potentiometer_finished.JPG b/manual/fig/potentiometer_finished.jpg
similarity index 100%
rename from manual/fig/potentiometer_finished.JPG
rename to manual/fig/potentiometer_finished.jpg
diff --git a/manual/fig/potentiometer_vishay.JPG b/manual/fig/potentiometer_vishay.jpg
similarity index 100%
rename from manual/fig/potentiometer_vishay.JPG
rename to manual/fig/potentiometer_vishay.jpg