3 ms·

No you see you just need to buy specially marked boxes of Cap'n Crunch that have a plastic whistle in them that plays the tones for you.

• userbinator 10mo ago
  I wonder how many HN readers still get that reference (and 2600, etc.)
  • hunter2_ 10mo ago
    We make use of a service already existing without paying for what could be dirt-cheap if it wasn't run by profiteering gluttons...
  • Y_Y 10mo ago
    I'm merely middle aged, but I've read the hacker lore. https://en.wikipedia.org/wiki/Blue_box https://en.wikipedia.org/wiki/Blue_box