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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:f9475ffbc67754cff4c4dd7e2520c8d46bc60bf8586e00e3a5ba9355352315e0"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 13 - Bistable Multivibrators (Flip-Flops)"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example E1 - Pg 413"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Caption:Determine the capacitance for flip flop design and triggering frequency \n",
+      "#Ex13.4\n",
+      "R1=16.1#Resistor(in kilo ohm)\n",
+      "R2=27#Resistor(in kilo ohm)\n",
+      "t=260#time(in ns)\n",
+      "R=R1*R2/(R1+R2)\n",
+      "C=t/(0.1*R)\n",
+      "f=10**6/(2.3*C*R)\n",
+      "print '%s %.f %s %.f' %(\"Capacitance(in pF)=\",C,\"\\nFrequency(in Khz)=\",f)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Capacitance(in pF)= 258 \n",
+        "Frequency(in Khz)= 167\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example E4 - Pg 423 "
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Caption:Design a collector coupled bistable multivibrator\n",
+      "#Ex13.1\n",
+      "V=5.#Supply voltage(in volts)\n",
+      "Ic=2.#Saturated collector current(in mA)\n",
+      "Vce=0.2#Collector emitter voltage(in volts)\n",
+      "hfe=70.\n",
+      "Vbe=0.7#Base emitter voltage(in volts)\n",
+      "Vbb=-5.#Base voltage(in volts)\n",
+      "Rc=(V-Vce)/Ic\n",
+      "Ib=Ic/hfe\n",
+      "Vb1=Vbe-Vbb\n",
+      "I2=Ic/10.\n",
+      "R2=Vb1/I2\n",
+      "I2=Vb1/R2\n",
+      "R=(V-Vbe)/(I2+Ib)\n",
+      "R1=R-Rc\n",
+      "print '%s %.1f %.1f %.1f' %('Components required to design the circuit are resistors(in kilo ohm)=',Rc,R1,R2)\n",
+      "\n",
+      "#R1 value is corrected "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Components required to design the circuit are resistors(in kilo ohm)= 2.4 16.4 28.5\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file