diff --git a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 3.md b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 3.md
index 578e8b609..fe6ea2dc6 100644
--- a/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 3.md	
+++ b/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 3.md	
@@ -1,2 +1,8 @@
 1. GM detector in appropriate holder. Power on NIM bin and 556 is shut off
-2. 556 high voltage supply - all
\ No newline at end of file
+2. 556 high voltage supply - all
+3.
+
+| Voltage | Count |
+| ------- | ----- |
+| 800     | 5499  |
+|         |       |