# Noise Reap Schematic Cave **URL:** \ **Category:** DIY STUFF\ **Created:** [November 17, 2021, 12:15pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236 "2021-11-17T12:15:03Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [November 17, 2021, 12:15pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/1 "2021-11-17T12:15:03Z")
Found online, the Eurorack company Noise Reap has released schematics for all of their discontinued modules, totally for personal and commercial use: > **[GitHub - noisereap/schema-cave: Various old schematics of retired and...](https://github.com/noisereap/schema-cave)** > > Various old schematics of retired and unreleased modules. - GitHub - noisereap/schema-cave: Various old schematics of retired and unreleased modules. Could be some gems in there! ---
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [November 17, 2021, 1:46pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/2 "2021-11-17T13:46:20Z")
‘Xim’ looks really useful, I’ve been looking for a little crossfader like that. 2.5cm module, anybody? (Although the output it 20v PtP, which seems a bit hot, right?) ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [November 17, 2021, 1:59pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/3 "2021-11-17T13:59:40Z")
Is it? I can’t tell by looking. Are you saying it’s greater than unity gain? You could always divide it down, though. ---
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [November 17, 2021, 2:15pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/4 "2021-11-17T14:15:49Z")
That’s what it says in the manual: [https://static1.squarespace.com/static/5f642087930bbc3568cdeddf/t/5fea5bd1c4e1037882b4585a/1609194449314/xim.pdf](https://static1.squarespace.com/static/5f642087930bbc3568cdeddf/t/5fea5bd1c4e1037882b4585a/1609194449314/xim.pdf), I guess they’re unity mixing two audio sources, so it make sense it’d be twenty. Voltage divider might do, or maybe just an variable attenuator at the end. ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [November 17, 2021, 2:24pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/5 "2021-11-17T14:24:03Z")
Well, they’re cross fading two sources, so it shouldn’t be greater than each. It says “headroom”. I’d assume it’s unity gain and can handle \> 10 Vpp if that’s what you give it. (Assumed until breadboarded, I mean.) ---
**Author:** ![saint\_et\_moudulard](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/saint_et_moudulard/32/12683_2.png) [@saint\_et\_moudulard](https://lookmumnocomputer.discourse.group/u/saint_et_moudulard)\ **Post date:** [November 19, 2021, 4:11am UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/6 "2021-11-19T04:11:10Z")
Wow !! great page ! a lot of schematics look so interessants ! thank you ! ---
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [November 25, 2021, 4:23pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/8 "2021-11-25T16:23:44Z")
Just tacking this on here, but I found a total schematic/kicad/layout for the Juno chorus using reissued chips: [GitHub - gligli/juno-chorus-clone: Roland Juno-60 chorus board clone](https://github.com/gligli/juno-chorus-clone) ![Screenshot 2021-11-25 at 17.32.53](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/2/8/28c05c7b56ba47f887f5d7d385190f956cac3d2e.jpeg) ---
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [December 11, 2021, 4:42pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/9 "2021-12-11T16:42:11Z")
![Screenshot 2021-12-11 at 17.41.32](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/f/5/f5a31bcb6eacfa40c4e9c9536dd9f81c64708c09.png) Got a PCB order coming up, figured I’d do a few and save on shipping costs… EDIT: And one more, I’ve gone crazy with the tiny modules. I don’t know what’s happening. Kross, a crossfading VCA. Envy, an envelope follower. ![Screenshot 2021-12-11 at 23.12.32](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/3X/b/2/b2d6738c12a6ee265859887342ffa7bec1e5985b.png) ---
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [December 11, 2021, 11:03pm UTC](https://lookmumnocomputer.discourse.group/t/noise-reap-schematic-cave/4236/10 "2021-12-11T23:03:30Z")
“SPVY”? Hmm. ![tiny](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/9/9496d58ad2725d67cbab9ccaf8e56f1791282b90.png)