RE: Converting a Commodore 64 from NTSC to PAL

From: Baltissen, GJPAA (Ruud) <>
Date: Fri, 13 Apr 2012 15:28:33 +0200
Message-ID: <>
Hallo Gábor,

> Anyway, frequency of the AC input is not so exact sometimes

As a Christmas present I gave my parents-in-law a self built clock in plexiglas using CMOS ICs and 7-segment LED display I scrapped from various computers and other electronic devices. It was triggered by the 50 Hz of the power net. My parents-in-law live in Poland only had to adjust it for summer/winter time and for the three or four powerdips they had in fifteen years time. 

I learned at the technical highschool that over here in the Netherlands they run a clock on the 50 Hz and that that clock is compared with an atomic one. If a difference occures, the frequency is temporarely slightly altered until both clocks are the same again.

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