# My build progress

**URL:** <https://lookmumnocomputer.discourse.group/t/my-build-progress/345>\
**Category:** DIY STUFF\
**Created:** [March 1, 2020, 8:57pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345 "2020-03-01T20:57:53Z")\
**Posts on this page:** 1\
**Showing post:** 163

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [April 16, 2020, 3:07am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/163 "2020-04-16T03:07:55Z")

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Yeah, I screwed up that one 🤦‍♀️ – and doubly so since I forgot to solder that resistor at first, and when I got to the cap and realized that I had to fit the resistor in there too I’d already trimmed the capacitor legs, so couldn’t put the resistor under the cap. I’ve verified that the headers still fit, though, so good enough for this first board 😄

(there’s only ~~six~~ nine things on the TODO list for revision 2 this far, but admittedly that’s before any serious electrical testing. But it could be worse 😃)

EDIT: The exponential converter doesn’t work properly. Annoying. But gave me some ideas that might help people debug MS20 output levels.

EDIT II: That was yet another [obviously misconfigured opamp](https://lookmumnocomputer.discourse.group/t/first-pcb-prototype-attempt/596/28). I really need to add “verify that opamp topologies make at least some sense” to my PCB design checklist 🙃

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