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Hi, and welcome.

 

This attempts to be a free-form, (mostly un-cohosted) podcast about tech-oriented hobby-projects. Do not proceed if you're looking for a high-quality production.

On a semi-biweekly basis, Michai and optional cohost talk about software, electronics and mechanical engineering from a hands-on point of view. Most of the time, that means giving excuses for not having done any work at all.

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  2. episode 17: connecting stuff, PCB-failure countdown and fixing a microphone/headphone

episode 17: connecting stuff, PCB-failure countdown and fixing a microphone/headphone

Mar 17, 2018

Only a short time between the last episode and this one, so I didn't do a whole lot of stuff: spent 1 day volunteering at a local Home Computer Museum, decided on a project for the upcoming Retro Challenge 2018/04, went through all PCB-design I've ever made and made a list of common failures, and fixed a headphone with built-in microphone (that is, removed the microphone-part).

Here's a pic of the microphone/pushbutton thing on the mentioned headphone, with a circuit of what's actually going on:

headphone-with-microphone and circuit  

(the cap is probably a 22 nF one though... Just blindly copied what the meter told me :-)