I think i can fix klondike v0.1 (NOR Gate issue) using little add-on pcb. Place on it 100 Ohm resistor, footprint for 2G02, and conect it all, like in k16 schematic?. What about Schmitt inverter package? it is need? Maybe also place it on add-on pcb?
Yes, a small add-on board would work. If it didn't take me so long to order and receive boards I'd try that but it's not worth it as new K1s would take the same time.
The inverter isn't strictly needed but it does seem to help at higher clocks. It tightens up the timing a lot so that it's more consistent with faster rise times, and at 420 MHz it can still read the result whereas without the inverters it usually cannot.
Just use the same circuit as K16 because I'm simply copying that into the k1 board. Well, I've done that already and I'm just reworking the board.
I can push the new K1 schematic up now anyway. I'll just update the parts list first.