Search found 2144 matches

by thermionicjunky
Sat Oct 13, 2018 10:10 am
Forum: Eurorack Modules
Topic: Filter to use in delay feedback loop
Replies: 55
Views: 3382

I would try the WMD quad anti-aliasing filter. It’s a Butterworth filter without resonance, just like in the Modcan Super Delay.
by thermionicjunky
Fri Sep 28, 2018 10:28 am
Forum: Music Tech DIY
Topic: Anybody ever built a Metasonix TS-21 Clone?
Replies: 3
Views: 727

The PWM circuit only works with waveforms containing discontinuities. Sawtooth and square/pulse waves work well. Otherwise, it will just produce self-oscillation.
by thermionicjunky
Sat Sep 22, 2018 8:35 pm
Forum: Guitars, Basses, Amps & FX
Topic: Post pics of your guitar/bass/amp/pedal setup!
Replies: 357
Views: 74427

Working on reintroducing voice and chordal instruments to my music. The body is a 1967 Fender Coronado XII with a 100% bubinga Warmoth neck, a proper bridge, and Curtis Novak gold foil pickups. The amp is a 15-watt 1x15 Siegmund Midnight Special combo. The only pedal at the moment is an Effectrode T...
by thermionicjunky
Sat Jul 28, 2018 4:45 pm
Forum: Music Tech DIY
Topic: Ratio tuning for multi oscillator fm idea / schematic
Replies: 8
Views: 668

thermionicjunky this all sounds really great, how far along is the project? Only planning, but each functional block has been independently verified. It’s basically just the Stroh Operators, but with a slightly different version of the VCO core, plus an aid module with VC slew, two types of phase c...
by thermionicjunky
Sat Jul 28, 2018 12:15 pm
Forum: Music Tech DIY
Topic: Ratio tuning for multi oscillator fm idea / schematic
Replies: 8
Views: 668

Ah yes that’s interesting, I hadn’t considered a pll. I’ve not experimented with them that much myself, am I right thinking that xor phase comparators will lock to harmonics? So you’re thinking something like that in combination with a frequency divider? Sounds great, I’d be interested to see where...
by thermionicjunky
Sat Jul 28, 2018 10:43 am
Forum: Music Tech DIY
Topic: Ratio tuning for multi oscillator fm idea / schematic
Replies: 8
Views: 668

I’m planning an Operator pair for similar purposes, but I’m adding a PLL with an optional modulo function for constraining frequency multiples to an octave. For me, the primary advantage of PM over FM is that the unmodulated VCO output can be used in a control loop.
by thermionicjunky
Fri May 11, 2018 7:50 am
Forum: Music Tech DIY
Topic: Ripples fine except no resonance
Replies: 6
Views: 485

Does the VCA function?
by thermionicjunky
Thu May 10, 2018 11:07 am
Forum: Fractional Rack Modules
Topic: Where can I get premade power cables
Replies: 18
Views: 3510

Synthcube offers them but they are usually out of stock. The Blacet site may look old but there is nothing to worry about.
by thermionicjunky
Fri May 04, 2018 1:33 pm
Forum: Modular Synth General Discussion
Topic: Newbie Gate problem?
Replies: 6
Views: 625

Are all other knobs on the mixer turned down as in the photo? The audio and CV inputs to channel one are normally connected to channels 2-4. Is the result the same if you take your audio output from the channel 1 output rather than the sum output?
by thermionicjunky
Fri May 04, 2018 1:19 pm
Forum: Modular Synth General Discussion
Topic: Newbie Gate problem?
Replies: 6
Views: 625

Turn down the gain. That is your minimum setting.
by thermionicjunky
Sat Apr 14, 2018 1:07 pm
Forum: 5U Format Modules
Topic: Modcan Dual VDO Doesn't stay in tune
Replies: 16
Views: 1656

What’s is the nature of the pitch instability? Does it drift, or is it wildly erratic?
The only stability issues that I ever had with Modcan modules were due to failed potentiometers. Those controls were wildly erratic.
by thermionicjunky
Sat Dec 09, 2017 7:52 pm
Forum: Eurorack Modules
Topic: Interesting E440/Wiard shapes through inversion/mixing/etc.
Replies: 6
Views: 541

Scroll down to the Boogie section of this post.

https://www.muffwiggler.com/forum/viewt ... 6006#66006
by thermionicjunky
Sat Dec 09, 2017 7:43 pm
Forum: Music Tech DIY
Topic: !!The Pseudo 0.5 258J Build/Mod Thread!!
Replies: 1706
Views: 179374

Almost finished my first board and it actually seems to work! I have a question though: Is it possible to make a separate sine wave output (like the pulse and triangle wave) and if so where can I find it on the PCB? You can tap the output of the sine shaper, but the waveform gets distorted as you f...
by thermionicjunky
Wed Nov 29, 2017 9:37 pm
Forum: Eurorack Modules
Topic: odd PLL question
Replies: 12
Views: 919

Try everything. The A-196 provides each functional block of the PLL, but it also allows the use of alternate circuits. Try a different phase comparator. Insert frequency dividers and other signal processors. PLL patches are interesting because of the unique properties of these functional blocks.
by thermionicjunky
Tue Nov 28, 2017 11:33 am
Forum: Eurorack Modules
Topic: What am I looking for? (CV controlled gate length modifier)
Replies: 23
Views: 710

Thanks for the quick responses everyone. I'll give it a shot with Maths tonight. I wasn't sure if a variable envelope would stay high enough to keep Tirana in the gate on state. Didn't have much time to mess around last night and didn't think of this until I was at work. Don’t use the envelope outp...
by thermionicjunky
Sun Nov 19, 2017 1:07 pm
Forum: Modular Synth General Discussion
Topic: Basic Ring Modulator Question
Replies: 6
Views: 743

If you use a bipolar LFO as an input to a DC-coupled 4-quadrant multiplier you will get amplitude modulation, but the gain will be modulated between -1 and +1 rather than 0 and +1 (assuming the correct voltage swing).
by thermionicjunky
Sat Oct 28, 2017 4:51 pm
Forum: Eurorack Modules
Topic: LFO frequency divider that preserve the original waveform ?
Replies: 20
Views: 1274

If you just need to reconstruct standard VCO waveshapes, there is a circuit that should work, but there is no commercial version.

http://www.bernacomp.com/elec/og2/og3_s ... ctave.html
by thermionicjunky
Sun Oct 15, 2017 12:01 pm
Forum: Metasonix
Topic: Two new Metasonix units inbound
Replies: 3
Views: 1719

Right, 0-5 is more than enough for the TM-2 filter CV, but the VCA circuits want more than 5v to open fully. Generally, these pentode VCAs work best with a CV range from slightly negative (-1 or 2v for full attenuation) to +10v or more.
by thermionicjunky
Mon Oct 02, 2017 9:04 pm
Forum: Music Software
Topic: Generating Modulation and Rendering to .WAV
Replies: 3
Views: 770

This is a pretty good resource:

http://booki.flossmanuals.net/pure-data/index#

And of course Miller's book The Theory and Technique of Electronic Music:

http://msp.ucsd.edu/techniques.htm
by thermionicjunky
Sun Oct 01, 2017 10:57 pm
Forum: Music Software
Topic: Generating Modulation and Rendering to .WAV
Replies: 3
Views: 770

Max and Pd are great for this, and Pd is free.
by thermionicjunky
Mon Sep 11, 2017 7:11 am
Forum: Eurorack Modules
Topic: Filters with interesting resonance characteristics
Replies: 39
Views: 2968

Look for a filter that doubles as a chaos generator, such as the Ian Fritz Threeler or the IFM Sprott.
by thermionicjunky
Sat Aug 05, 2017 10:25 am
Forum: Eurorack Modules
Topic: Replicating a Maestro W-3 with Euro (woodwind processor)
Replies: 6
Views: 546

Turn the waveform into a square with a comparator and patch that square to both the signal and trigger inputs of maths. The rise and fall parameters can then be adjusted to fixed positions that produce various woodwind formants. This technique was used in a German synth called the Variophon and in a...
by thermionicjunky
Sun Jul 16, 2017 9:25 am
Forum: 5U Format Modules
Topic: Modcan B Series VCDO issue
Replies: 5
Views: 690

when did you buy the module Ramasas? About three years ago Bruce received a batch of faulty Alpha pots that started acting up after some use. I had a problem with two modules and had the pots replaced. But if the CV input causes the same noise, I wouldn't blame the pot. Both CV sources go to the sa...
by thermionicjunky
Thu Jul 13, 2017 7:00 pm
Forum: 5U Format Modules
Topic: west coast dual osc
Replies: 6
Views: 870

A wavefolder of some sort. Pretty much everything else can be emulated with standard modules, but it will take some creative patching. You'll want to be able to use Frequency modulation, amplitude modulation, sync, and the folder all together. So a mixer and a vca to patch all this together also wi...
by thermionicjunky
Sun Jul 09, 2017 10:32 am
Forum: Eurorack Modules
Topic: Euro to AES or SP/DIF?
Replies: 1
Views: 237

The Expert Sleepers ES-40/ES-7 combo comes in at 10hp.

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