Index: simulation/sim/04_passive_tr/index.html
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--- simulation/sim/04_passive_tr/index.html	(revision 8802)
+++ simulation/sim/04_passive_tr/index.html	(revision 8803)
@@ -10,8 +10,8 @@
 
 <h2> The schematics </h2>
 <p>
-The single-sheet schematic contains the filter, the voltage source and
-the spice command symbol.
+The single-sheet schematic contains the filter, directly usable in the PCB
+workflow.
 <p>
 <center>
 <a href="04_passive_tr.rs"><img src="04_passive_tr.svg" width=400px></a>