Tag: chroma

Open RF-modulator replacement that improves the C64's original luma, chroma, and composite video signals.

Retro Electronics listed one board in stock on 2026-07-25. Installation is an irreversible soldering job that removes the original RF modulator, adds two headers, and solders a ground wire.

Breaks a compatible Commodore A/V port out to S-Video, composite video, stereo SID audio, and a stereo mini-jack.

The maker showed four V2 units in stock with a working cart path on 2026-07-29. Early C64 Assy 326298 machines use a five-pin video socket: composite output works, but S-Video does not. The optional SID-ground noise-reduction jumper must not be enabled on an Ultimate 64 board.

Breaks a compatible Atari five-pin monitor output into S-Video, composite video, and audio connections.

All three variants exposed login-or-register-to-buy paths on 2026-07-28. Human review established that the Atari 800, 800XL, and 1200XL have the required stock five-pin DIN connector. The Atari 400 and 600XL do not, so they are deliberately excluded. Atari 65XE and 130XE support is banked until those targets enter the catalog. Confirm that the exact regional motherboard exposes the desired luma and chroma signals before buying for S-Video use.

Breaks a compatible C64 video socket out to S-Video, composite video, and RCA audio.

The product exposed a login-or-register-to-buy path on 2026-07-28. Human review says it works only with C64 units having the compatible six-pin video socket, so it is not presented as universal across C64 revisions. Check the computer's physical socket against the seller photographs before ordering. The page's AUDIO_IN header description is garbled and is not treated as usable documentation.