I wanted to make a decade counter (like a 4017, which is the basis of this whole clock) and I soldered 5 more modules.

Then I tested them.

None of them worked.

The only difference with the first two was : the BS250, coming from a different source (from the far east, yes again...)

After a little test, it appeared that these are indeed P-MOSFET but with reversed pinout !

I had to desolder those 4×5=20 transistors and all the modules work now.

While wiring the 5-bits counter, it appeared that I did another mistake. There is no way to asynchronously reset the flip-flop to a given state. You have to solder a wire to the board. Somehow, I didn't bring the gates to the 7-pins connector !

I'll have to change that for the Rev.2 board...

Anyway I got something working tonight.

Not the desired decade counter but a 5-bits binary counter. Eh that's still something. And after I correct the above mistakes, it runs like a charm.

I have to find a solution for the reset, so I can make a reliable Johnson counter...

I can sleep now :-)