Index: trunk/FACT++/src/EventBuilderWrapper.h
===================================================================
--- trunk/FACT++/src/EventBuilderWrapper.h	(revision 11687)
+++ trunk/FACT++/src/EventBuilderWrapper.h	(revision 11688)
@@ -171,4 +171,6 @@
         if (fStep==0)
         {
+            // Default gain:
+            // 0.575*[45590]*2.5V / 2^16 = 0.99999 V
             fOffset.assign(1440*1024, 0);
             fGain.assign  (1440*1024, 2);
@@ -211,6 +213,6 @@
         {
             fGain.assign(fSum.begin(), fSum.end());
-            fNumGain = fNumEntries;
-            // Now we have a scale from -16384 to 16384
+            fNumGain = fNumEntries*1000;
+            // Scale from Volt to Millivolt
         }
         if (fStep==2)