Update 'Future Modules'

Future-Modules.md

@@ -36,6 +36,12 @@ Less confident about the order or selection of these, though we do know we need
 ## LFO
 Lots of options for this one, but many people have at least two LFOs anyway.
 
+#### Three phase LFO
+
+* 4053 (comparator), 4093 (quad schmidt trigger inverter), 4069 (simple hex inverter)
+* https://www.schmitzbits.de/triphase.html
+
+
 ## Quantizer
 Something to take CV in, round it to the nearest 1/12th of a volt (or whatever, if it's digital), and send it back out.
 
@@ -67,9 +73,11 @@ Something to take CV in, round it to the nearest 1/12th of a volt (or whatever,
 
 #### MK's three-color noise generator
 
+* from https://www.youtube.com/watch?v=0yB_h_wFkh4 (PDF not yet released)
 * breadboard it
 * spectrum analysis
-* add more colors, if possible?
+* add more colors, for those colors that are essentially filtered white noise
+** e.g. https://sound-au.com/project11.htm
 * more details TBD
 
 ## Envelope Generator
@@ -91,3 +99,36 @@ Tons of these, too, and most people want at least two of these in a rack, if not
 ** not a very large range of in-tune response, but comments discuss potential fixes, maybe worth it for practice
 ** about $3 in parts (no ICs), and a big part of that is PCB and IDC, so expanding to a dual or quad would add very little cost
 ** cheap way to get to a slightly-detuned supersaw, with a voltage splitter or multiplexer module
+
+#### A VCO with hard sync
+?
+
+## Moar VCFs
+Everybody needs several VCFs with different behaviors.
+
+#### Wasp clone?
+* http://www.modular.fonik.de/Page38.html
+** CA3080 High-Performance Operational Transconductance Amplifiers - not a jellybean, so $3/ea for sketchy NOS on amazon
+** CA3080 design is ancient; maybe an updated one exists with current ICs?
+
+## Wave Shaper
+
+## Ring Modulator
+#### https://www.schmitzbits.de/ringmodplus.png
+#### http://yusynth.net/Modular/EN/RINGMOD/index.html
+
+## Weird sound generator
+#### gristleizer
+#### Swamp Wogglebug
+
+## Drum synth
+#### LMNC built an ancient NOS one?
+#### Synthcussion?
+#### Midi?  Or analog gate signals directly?
+
+# Digital modules galore
+Once this door is opened and we commit to a quantity order of arduino nanos or whatever, tons of options become available.
+
+#### Everything by Hagiwo (quantizer, filters, noisemakers, etc)
+#### MIDI-to-CV, either over USB or directly over 5-pin DIN (with optoisolator)
+