Mao Collection, Lower Volume Radical: Tapping (pū) Dian Kangxi strokes: 12 Page 472, Entry 13 Broad Rhymes (Guangyun), Collected Rhymes (Jiyun): Pronounced dian (rising tone). Explaining Graphs and Analyzing Characters (Shuowen): Written as dian. To govern. Jade Compendium (Yupian): Constant. Now written as dian. Six Scripts System (Liushutong): To use standards to govern people, therefore it is derived from the tapping radical. The character dian was originally written with the tapping radical.