diff --git a/electronics/electronics/pcbfabrication/transparencies.md b/electronics/electronics/pcbfabrication/transparencies.md
index 637c638..3c11c25 100644
--- a/electronics/electronics/pcbfabrication/transparencies.md
+++ b/electronics/electronics/pcbfabrication/transparencies.md
@@ -4,6 +4,11 @@
 
 ___
 
+**Prerequisites**
+
+* [Printer](/electronics/bom#hardware_printer)
+* [Transparencies](/electronics/bom#consumables_transparencies)
+
 [[_TOC_]]
 
 # Designing the circuit board