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by jtwaleson 566 days ago
Very nice job! Last month I also adapted a rotary phone but I replaced the insides with a Bluetooth chip (and some more). Now I can use it as a headset for my smartphone or laptop. While you had to learn about SIP and voltage converters I had to learn about Bluetooth and digital audio protocols. Looks like we both had fun ;)

https://blog.waleson.com/2024/10/bakelite-to-future-1950s-ro...
1 comments
nja 565 days ago
Wow, this is a project I've been kicking around for years! I have an old red rotary phone (a bit newer than yours) held aside just for it.

Definitely bookmarking your post

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jtwaleson 565 days ago
If you're comfortable designing PCBs I would definitely take that route and base it on the components I've used. Mine has a couple of irritations (not able to charge when off, voltage dropping below 5v after the battery loses a bit of power so the mic and speaker stop working, etc). Feel free to reach out if you have any questions!
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