CEM3340 VCO LMNC
So I found an updated actual schematic from lookmumnocomputer and it has a handful more resistors added in the PWM circuit. I was able to modify my layout to show what worked for me. The biggest issue...
View Article4017 Baby Sequencer Stripboard
:welcome: :partyguy:What you are experiencing is most likely the result of a floating (unconnected) input. One of the 'rules' when using CMOS chips isto never leave an input unconnected (unless you...
View Article[veroboard] 3 in and 3 out matrix mixer with buffered inputs
Thanks for posting that schematic. I'm actually interesting in building one my self and I've got a question regarding the buffered 4.5v. How you create it ? What I mean is that in order to make this...
View ArticleYusynth, Thomas Henry and other stripboard modules
It looks like the connection of the wiper of VR2, P2 in the schematic.
View ArticleMS-20 VCF Stripboard Layout
(...)and here's a link to the original MS20 schematic:http://machines.hyperreal.org/manufacturers/Korg/MS-synths/schematics/KLM-307.GIF(...) The original MS-20 HPF/LPF filter had a discrete core,...
View Articlebasic volt per octave keyboard schematics
wouldn't it be easier to get a schematic for MIDI to CV? I'm sure there must be schematics out there where you can take a MIDI input and convert it to a 1 volt per octave CV output. No it wouldn't...
View ArticleMFOS VC reverb as simple line level driver/makeup gain
i was thinking something similar a while ago, for the two tanks i keep here in prison.i would put R8 (200k) in question,as u would divide the previous amplified (factor 161?) by 3 with the last stage,u...
View ArticleWASP vcf stripboard
Hello..as per my knowledge with Wasp VCF, If the regulator is working right, there will be 5v on pin14 of the 4069. Note that both chips will work happily on 9v supply, so I'm puzzled as to why 5v...
View Article4017 Baby Sequencer Stripboard
Hey there!Thanks a lot for the layout! I've built the sequencer a few months ago and it works like a charm! The only issue is that when I disconnect the clock for manual steps, sometimes it changes...
View ArticleMS-20 (LM-13700 version),Polivoks or EMS VCF on veroboard?
here you'll find my layout for Takeda's MS20 VCF. I added a charge pump to use it as a stompbox with a standard 9VDC power supplies (also with -/+9V instead of +/-15V the filter works really well! but...
View ArticleYusynth, Thomas Henry and other stripboard modules
Ah, that ADSR is just what i was looking for! Thanks much!
View ArticleCEM3340 VCO LMNC
I had a lot of trouble tuning Sam's design. I have found that the tracking is much better if you implement the Linear FM circuit as shown on the CEM3340 data sheet (pins 11,12,13). It is a very simple...
View ArticleYusynth, Thomas Henry and other stripboard modules
This is some great stuff!One question regarding the Barton Wave Animator: the original schematic uses C taper pots, rather than B taper like here. Is this solved here by connecting lug 2 and 3...
View ArticleYusynth, Thomas Henry and other stripboard modules
Hello friends!I drew up a stripboard layout for the MFOS Dual Log/Lin VCA. The VCA portion of the circuit fit neatly on 1/2 of a board, while the exponential circuit wouldn't fit there. So, if you'd...
View Articlecould someone check this chorus layout quick, thx
In the upper lay out, 3 and 4 are grounded, aren't they?EDIT: now looking a bit better, 4 does not seem to be.
View Articlecould someone check this chorus layout quick, thx
Pins 3 and 4 are connected internally by a low-value resistor. Many schematics don't show them connected for this reason, including the original schematic by "anchovie" from which these layouts are...
View ArticleYusynth, Thomas Henry and other stripboard modules
Hello again!I was inspired by the Yusynth ADSR layout that's in this topic to make my own version of it. My main goal was to be able to fit 2 of this circuit on 1x small stripboard, and while it is a...
View ArticleHexinverter´s Battery Acid layout
Hi there, I’ve just finished this module but I’m not sure about its behavior. In details, I’ve noticed: 1. The output level is lower then the input level2. Passing through the module the sound loses...
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