diff --git a/Areas/upv/classes/analog-electricity/Class_02.md b/Areas/upv/classes/analog-electricity/Class_02.md
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+++ b/Areas/upv/classes/analog-electricity/Class_02.md
@@ -0,0 +1,45 @@
+![[LabExp-2. Differential amplifier and Bode Diagram.pdf]]
+
+```circuitjs
+$ 1 0.000005 10.20027730826997 50 5 43 5e-11
+v 128 176 128 320 0 0 40 1 0 0 0.5
+r 128 176 272 176 0 100000
+r 128 320 272 320 0 100000
+r 272 320 272 400 0 1000000
+g 272 400 272 448 0 0
+409 304 240 416 240 1 0.6 -24.378033571762376 0.0231 0
+w 272 320 304 256 0
+w 272 176 304 224 0
+R 352 208 352 144 0 0 40 15 0 0 0.5
+R 352 272 352 352 0 0 40 -15 0 0 0.5
+r 320 112 416 112 0 1000000
+w 416 240 416 112 2
+w 272 176 320 112 0
+v 592 192 592 320 0 0 40 5 0 0 0.5
+o 11 64 0 151554 20 0.1 0 2 11 3
+```
+
+When supplied with $1V$ this circuit should produce an output voltage of $10v$
+
+
+| data | x |  y |
+|------|---|----|
+| Data1| 4 | 1  |
+| Data2| 1 | 1  |
+| Data3| 3 | 2  |
+| Data4| 1 | 7  |
+| Data5| 3 | 1  |
+^data
+
+```chart  
+type: line
+beginAtZero: true
+fill: true
+id: data
+tension: .5
+legend: true
+layout: columns  
+width: 80%
+```
+
+
diff --git a/Areas/upv/classes/analog-electricity/LabExp-2. Differential amplifier and Bode Diagram.pdf b/Areas/upv/classes/analog-electricity/LabExp-2. Differential amplifier and Bode Diagram.pdf
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index 0000000..b8ed929
Binary files /dev/null and b/Areas/upv/classes/analog-electricity/LabExp-2. Differential amplifier and Bode Diagram.pdf differ