According to the website, you can just change a couple wires and it will work with 50 Hz power. This changes the divide-by-6 circuit to divide-by-5. http://www.

According to the website, you can just change a couple wires and it will work with 50 Hz power. This changes the divide-by-6 circuit to divide-by-5. http://www.transistorclock.com/50Hzmod.pdf http://www.transistorclock.com/50Hzmod.pdf