Rules and near-rules

Some properties only occur together. If stickers and colours had been combined independently, each of the following rules would be practically impossible: in November 2026 the probability of it arising by chance was below 1 in 10 million for each of them. The figures in the texts are calculated live from the archive; every link shows the devices concerned in the archive.

Sticker, chassis and controllers

  • White chassis → “RFT TV-Spiel”: 57 of 57 devices with a white chassis carry the RFT sticker. View in the archive
  • “TV-Spiel” → black chassis and black controllers: 130 of 130 devices with the “TV-Spiel” sticker. View in the archive
  • White controllers → white chassis: 27 of 27 devices with white controllers. 0 devices have a black chassis with white controllers. View in the archive

Buttons and sticker

  • Black buttons → “RFT TV-Spiel”: 31 of 31 devices with black buttons carry the RFT sticker. View in the archive
  • Near-rule: orange buttons → “TV-Spiel”: 74 of 76 devices with orange buttons carry the “TV-Spiel” sticker. Conversely, only 2 of 109 RFT devices have orange buttons. The exceptions in the archive

Buttons and colours

  • White controllers → yellow buttons: 27 of 27 devices with white controllers have yellow buttons. View in the archive
  • Orange buttons → black chassis and black controllers: 76 of 76 devices with orange buttons. View in the archive

The exceptions

Two devices break the near-rule “orange buttons → TV-Spiel”: they carry the RFT sticker but have orange buttons.

RFT BSS01 435 – photo 1
RFT BSS01 435

Device 435 shows signs of technical modifications. The buttons may have been replaced at the same time.

RFT BSS01 820 – photo 1
RFT BSS01 820

Device 820, on the other hand, looks completely original.

Whether both devices left the factory like this is unknown. The buttons may also have been replaced in a later repair. Do you know the history of one of these devices, or do you own another one with this combination? Then write to kontakt@bss01.de or add your device.

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