HowTo: Make a LoFi Mic from an Old Telephone

he speaker in an old telephone makes a great lo-fi mic. Just wire a 1/4 inch jack straight up to the speaker and enlarge the telephone jack hole to mount it. A small piece of towel helps to muffle some of the air noise. An audio sample and picture of the insides are in the main blog entry. Made by recompas

lofi mic made from a telephone speaker
audio sample
1/4 inch phone jack
We’ve got a couple extra lofi-phone-mics if you want to buy one, just click the contact link and let us know…

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CuriousInventor launched in late 2006 (pre-arduino era!) as a place to enable hobbyists, students, and musicians to create their own technology. We sold open-source kits and tools, and offered numerous guides & videos on things like soldering, metal working, screws, electronics, and more. 

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