TiCK2 Keyer IC on PC board.

On the way to assemble TiCK keyer.
The PC board size is 3cm x 2.5cm.
I use IC socket to be able to change TiCK1 and TiCK2.
And use connector to ease assemble it.

I use Lithium button Battery CR-2025 for its regulator. It's small and thin.

Close up PC board part.

After that, I put this PCB board into the film case. Here is very small electronic keyer shown bellow.
tickfilmcase.JPG (7658 ƒoƒCƒg)