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diff --git a/181/CH8/EX8.8/example8_8.sce b/181/CH8/EX8.8/example8_8.sce
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+// Max and Min firing delays
+// Basic Electronics
+// By Debashis De
+// First Edition, 2010
+// Dorling Kindersley Pvt. Ltd. India
+// Example 8-8 in page 386
+
+clear; clc; close;
+
+// Given Data
+Vc=40; // Breakdown voltage of DIAC in V
+C=470*10^-9; // Capacitance in nF
+E=240; // Rms voltage at 50 Hz in V
+omga=2*%pi*50; // Angular frequency
+
+// Calculation
+printf("When DIAC is not conducting:\n")
+A=asind(40/335.8)+8.4;
+Z=1/(omga*C);
+R1=atand(1/(omga*1000*C));
+Zd=sqrt(R1^(2+(1/omga^2*C^2)));
+printf("Minimum delay = %0.2f degrees\n\n",A);
+printf("When DIAC conducts:\n");
+A1=asind(40/88.6)+74.84;
+printf("Maximum delay = %0.2f degrees",A1);
+
+// Result
+// Minimum delay = 15.24 degrees
+// Maximum delay = 101.6 degrees
+\ No newline at end of file
diff --git a/181/CH8/EX8.8/example8_8.txt b/181/CH8/EX8.8/example8_8.txt
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+When DIAC is not conducting:
+Minimum delay = 15.24 degrees
+
+When DIAC conducts:
+Maximum delay = 101.68 degrees 
+\ No newline at end of file