After making my last post, and doing a bit more research, I found a 3-8 decoder that doesn’t invert the output (74HC238). I purchased some of these and will use them in the 16 row builds. I should be able to drive the display directly with these w/o needing the octal inverters.
Oh well, I’ll have some spare parts to mess with in the future when my original 74hc138’s and inverters arrive. 😀
I also have placed the order for 2 more displays they should arrive around 7/26. So maybe by next weekend sometime I’ll be able to have a 16 x 80 running. (fingers crossed)
That’s all for now…