The Final batch (4) contains a couple of changes - these will be indicated by *** in the description. If you received a BAG1 with pale brown MDF nixie sockets then you have a batch 4 kit.
After preparing a suitable working space take the PCB and the 680K resistors. Fit these in locations marked for R3,4,5,8,9,20,21,23,24 and 26 as shown:
***These are 2m2 (red red green).
V1.1 board:
