diff --git a/RT77-oper/plots.ipynb b/RT77-oper/plots.ipynb
index c3c3b51..06e4bf3 100644
--- a/RT77-oper/plots.ipynb
+++ b/RT77-oper/plots.ipynb
@@ -31,6 +31,22 @@
     "deltaPercent = lambda a, b: (1 - min(a, b) / max(a, b)) * 100"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "f4db8318-243e-450c-8dd4-474e5b9fb945",
+   "metadata": {},
+   "source": [
+    "## 1 Усиление ОУ"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "518abf57-8909-49f7-a487-46211ec8f416",
+   "metadata": {},
+   "source": [
+    "![scheme1](scheme1.png)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "22d07d19-02ec-468b-aa0f-0738cb65931a",
diff --git a/RT77-oper/scheme1.png b/RT77-oper/scheme1.png
new file mode 100644
index 0000000..d7ac97b
Binary files /dev/null and b/RT77-oper/scheme1.png differ