2 Digit IN-12 Nixietube board. Build to be "stackable" sideways input from lowest digits. - NOTE: Socket is 180 degrees wrong due to faulty custom component in library. Char array to correct digit showing is below. This array shows correct digits.(only covering 0-59 since it's clock) - NOTE 2: Socket and PCB is not a perfect fit. Put in the socket (quite tricky), then push in the tube, then solder... int charTable[] = {0,16,32,48,64,80,96,112,128,144,1,17,33,49,65,81,97,113,129,145,2,18,34,50,66,82,98,114,130,146,3,19,35,51,67,83,99,115,131,147,4,20,36,52,68,84,100,116,132,148,5,21,37,53,69,85,101,117,133,149}; Array for 00,01,02.. ,99 is below. ------ To show 67 create each number to 4 digit binary: 6 - 0110 7 - 0111 Then add them backwards like 01110110 this iss the converted to decimal 01110110 - 118 And then 118 is shifted out to the register and latched on. ------------------------------ Array for 00,11,22,....,99 int charTableLoop[] = {0,17,34,51,68,85,102,119,136,153} ------------------------------- Array for 00,01,02,....,99 int charTable0099[] = {0,16,32,48,64,80,96,112,128,144,1,17,33,49,65,81,97,113,129,145,2,18,34,50,66,82,98,114,130,146,3,19,35,51,67,83,99,115,131,147,4,20,36,52,68,84,100,116,132,148,5,21,37,53,69,85,101,117,133,149,6,22,38,54,70,86,102,118,134,150,7,23,39,55,71,87,103,119,135,151,8,24,40,56,72,88,104,120,136,152,9,25,41,57,73,89,105,121,137,153}