Add new manual on real opamps and update existing content

- Added new notebook `4.2_real_opamps.ipynb` covering real opamp characteristics and tasks.
- Updated `_toc.yml` to include the new manual.
- Refactored content in `4.1_opamp_basics.ipynb` for clarity and conciseness, removing redundant markdown sections.

Author: zamkorus

book/_toc.yml

@@ -34,6 +34,7 @@ parts:
       - file: manuals/week4/_summary.ipynb
         sections:
           - file: manuals/week4/4.1_opamp_basics.ipynb
+          - file: manuals/week4/4.2_real_opamps.ipynb
       - file: manuals/week5/_summary.ipynb
       - file: manuals/week6/_summary.ipynb
       - file: manuals/week7/_summary.ipynb

book/manuals/week4/4.1_opamp_basics.ipynb

@@ -35,45 +35,7 @@
    "cell_type": "markdown",
    "id": "b037e93a",
    "metadata": {},
-   "source": [
-    "### Background\n",
-    "```{admonition} Preparation\n",
-    ":class: tip\n",
-    "Before starting this experiment read the textbook section on operational amplifiers: feedback, the zero-conditions (golden rules), and the non-inverting and inverting configurations.\n",
-    "\n",
-    "* [Textbook chapter 7: operational amplifiers](../../../theory_part/7_opamp1.md)\n",
-    "\n",
-    "<span style=\"background:#ff1493;color:#fff;padding:2px 8px;border-radius:4px;font-weight:700;font-size:0.85em;box-shadow:0 0 6px rgba(255,20,147,0.6);\">🚩 TODO: replace the link above with the published textbook URL or anchor for chapter 7</span>\n",
-    "```\n",
-    "\n",
-    "\n",
-    "(Task_B1_4_1)=\n",
-    "#### Task B1: Operational amplifier basics\n",
-    "This manual builds three circuits around a single eight-pin opamp chip (TL072CP or LM358P). The unifying idea is the **virtual short**: in a closed feedback loop, the opamp drives its output until both inputs sit at the same voltage. From that single fact you can derive the gain of every circuit you will build today.\n",
-    "\n",
-    "##### The chip and its supply\n",
-    "\n",
-    "The chip has two opamps inside one DIP-8 package. During this practical you will use one of them. \n",
-    "\n",
-    "```{figure} images/opamp_DIP8.svg\n",
-    "---\n",
-    "name: fig-opamp-pinout\n",
-    "height: 400px\n",
-    "---\n",
-    "DIP-8 packaged opamp pinout\n",
-    "```\n",
-    "\n",
-    "\n",
-    "The relevant pins are:\n",
-    "\n",
-    "* pin 1: output of opamp 1 (the one you will use).\n",
-    "* pin 2: inverting input of opamp 1.\n",
-    "* pin 3: non-inverting input of opamp 1.\n",
-    "* pin 4: negative supply, $V_- = -12\\,\\mathrm{V}$.\n",
-    "* pin 8: positive supply, $V_+ = +12\\,\\mathrm{V}$.\n",
-    "\n",
-    "The two power pins may not be visible in opamp schematics below, but you must wire them every time. **The opamp will not work without both rails connected, and it can be damaged if the polarity is reversed.**"
-   ]
+   "source": "### Background\n```{admonition} Preparation\n:class: tip\nBefore starting this experiment read the textbook section on operational amplifiers: feedback, the zero-conditions (golden rules), and the non-inverting and inverting configurations.\n\n* [Textbook chapter 7: operational amplifiers](../../../theory_part/7_opamp1.md)\n\n<span style=\"background:#ff1493;color:#fff;padding:2px 8px;border-radius:4px;font-weight:700;font-size:0.85em;box-shadow:0 0 6px rgba(255,20,147,0.6);\">🚩 TODO: replace the link above with the published textbook URL or anchor for chapter 7</span>\n```\n\n\n(Task_B1_4_1)=\n#### Task B1: Operational amplifier basics\nThis manual builds three circuits around a single eight-pin opamp chip (TL072CP or LM358P). The unifying idea is the **virtual short**: in a closed feedback loop, the opamp drives its output until both inputs sit at the same voltage. From that single fact you can derive the gain of every circuit you will build today.\n\n##### The chip and its supply\n\nThe chip has two opamps inside one DIP-8 package. During this practical you will use one of them. \n\n```{figure} images/opamp_DIP8.svg\n---\nname: fig-opamp-pinout\nheight: 400px\n---\nDIP-8 packaged opamp pinout\n```\n\n\nThe relevant pins are:\n\n* pin 1: output of opamp 1 (the one you will use).\n* pin 2: inverting input of opamp 1.\n* pin 3: non-inverting input of opamp 1.\n* pin 4: negative supply, $V_- = -12\\,\\mathrm{V}$.\n* pin 8: positive supply, $V_+ = +12\\,\\mathrm{V}$.\n\nThe two power pins may not be visible in opamp schematics below, but you must wire them every time. **The opamp will not work without both rails connected, and it can be damaged if the polarity is reversed.** The pinout figure above is drawn in the **top view** of the package (not rotated). Before wiring, identify pin 1 on your actual chip by locating the **notch or dot** on the package, and orient the chip so that the notch/dot matches the figure."
   },
   {
    "cell_type": "markdown",
@@ -570,4 +532,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 5
-}
+}