u/Brave_Elk_6189 — reddlx

Image 1 — inverting summing mixer question

Image 2 — inverting summing mixer question

inverting summing mixer question

I'm working on a eurorack mixer circuit. I'm noticing that although no individual signal clips, the result clips when I add enough inputs (pic1). Some of the designs I was looking at use R8/R7 (meant to represent a pot) as the "master gain control", but turning that down doesn't fix the clipping, since it is happening at the first opamp's output.

In picture 2, I reduced the gain of the first amp to 1/2 by changing R5 to 50k. This gets rid of the clipping. But then, in picture 3, when I am only using 2 inputs, the output level is too low and I don't have a control to bring it up. I am thinking I should make R5 the 50k master gain pot, and get rid of R8/R7. I would just connect the wiper and one leg, and add another 50k in series (picture 4).

Does this seem like a valid design decision? I know I could also just turn down all of the inputs slightly if I don't want clipping, but that seems like a bad user experience.

u/Brave_Elk_6189 — 9 days ago

▲ 160 r/houseofleaves+2 crossposts

Do not buy this book!

This book is all but worthless. Many troubleshooting steps in the back of the book point to chapter 7 for solutions. Not only is chapter 7 missing, but it is actually not even shown on the table of contents. It just jumps from chapter 6 to chapter 8.

There are various incorrect statements throughout and no diagrams or pics in the book either.

I should have known not to spend the $20 for it since most of what I need to know is in the service manual or found on YouTube.

u/Brave_Elk_6189 — 9 days ago

▲ 50 r/controlgame

I think I missed when they explained this in the game. Why do we kill hiss-infected people instead of containing/cleansing them?

if >!jesse can purge the hiss out of stuff!<why do we kill infected people, even named characters? i guess they are so mutated that even if we could get the hiss out, they would still be mutants? what about the floating chanters that aren't mutated? Characters behave like it's totally impossible to get hiss out of stuff after we tried in that cutscene at the very beginning of the game and it killed the host. But we cleanse control points, altered items, and >!dylan!<. I thought the difference with >!jesse and dylan is polaris helping fight off the hiss. Dylan doesn't have polaris's voice in his head anymore, so jesse being able to cleanse him is just because she's directing polaris to do it.!<

edit: we do see a guy with an hra die and then get infected after death (anchor side mission), some commenters are pointing to a Pope document that speculates it's host-parasite dependence, other commenters claim they die at the moment of hiss infection. It seems like the exact mechanics of it are left vague in the text to keep it mysterious.

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u/Brave_Elk_6189 — 2 months ago

▲ 2 r/swaywm

how to avoid screen burn/image retention

i noticed some icons that were displaying on waybar burned into the screen even when booted into windows. It's gradually faded and is mostly gone now. Any way to prevent this in the future? Any idea what causes this? Never had this problem on x11 or windows, on any machine before. (including those os on this laptop, fw13)

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u/Brave_Elk_6189 — 3 months ago

▲ 1 r/lighters

old ronson "typhoon" - which flints to buy?

got an old lighter at a garage sale, regular zippo flints don't fit. I'm not interested in hunting down the exact vintage kind on ebay, is there a modern equivalent still being made or a way to modify it to make zippo flints work?

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u/Brave_Elk_6189 — 3 months ago