Commodore 64 Monitor Conversions

Written by jonah quant
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Commodore 64 Monitor Conversions
A regular computer monitor can render video and audio streams from a Commodore 64. (composite image by Victor B from

The Commodore 64 is an 8-bit personal computer from the mid-1980s. It was the best-selling single personal computer model of all time. Its manufacturer, Commodore Business Machines, sold several models of monochrome and colour monitors for the Commodore 64. Because the Commodore 64 continues to have a cult following, some loyal users want to be able to use modern computer monitors for their legacy hardware. There are several alternatives to achieve this conversion.

Use the RF Video Output

The Commodore 64 can be directly connected to a standard NTSC TV set for both audio and video, by way of the Radio Frequency (RF) Video Output. The user can connect the RF Video Output to an RF demodulator, and then connect the VGA output of the demodulator to a standard computer monitor. Demodulators are common in scenarios where multiple video sources are piped into the same display hardware.

Composite Video Output to a PC Tuner

Composite Video is the output commonly used in the Commodore 64 to drive legacy Commodore monitors. However, PC Tuner cards (such as those common in home theatre PCs) can accept a composite input, and display that input stream in the monitor connected to the computer.

Composite Video Output to a Compatible Display

Some computer monitors can directly accept a composite video signal, although that is more common in TV sets. If your monitor is one of those, connect the Commodore 64 directly to the monitor.

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