Tuesday, March 19, 2019

Transistor-82 Lo-Fi Analog Percussion Synthesizer Overview Demo #1

Today I am proud to introduce my Transistor-82:
a low tech analog percussion synthesizer Eurorack module.
It's been in the works over a year.
Circuit testing has been well...quite addictive!
First I explain the concept of Transistor-82 and how it came about.
Then take a quick tour of the front panel features/controls.
And close out with some audio demos.

0:00 Opening Demo
0:10 Intro, Development, and Lo-Fi Drum Brains
1:22 Opening Demo Continued
1:28 A Quick Tour of Transistor-82!
3:15 Audio Demos

Trigger shots coming from Varigate4.
CV modulations from S/H and Batumi LFOs.
Audio recorded direct to Tascam DR-05, no added effects.
Transistor-82 is now available in my Reverb Store.

Saturday, March 16, 2019

Tuesday, March 12, 2019

Yamaha TX81Z Forever [Bank 2 w/ FX, Demo #5]

Selected patches from Bank 2 for the TX81Z FM Synthesizer.
Deeper into the dreamy, dark soundtrack territory.
This time using Big Sky reverb and Timefactor Delay.

Recorded direct to Tascam DR-05.
Get the free patches on my download page

Wednesday, March 6, 2019

Announcing the Transistor-82 Lo-Fi Analog Percussion Module

Thump, hiss, whack, booooom. Transistor-82 is a highly tweakable, retro percussion synthesizer in 14HP Eurorack format. This time around the Transistor-82 is different circuitry than its predecessor. But still has the same vintage charm + adds a ton of features and input CV control over many parameters. I have found this single voice, with this extent of control, can sound like 4 or 5 voices.
The Transistor-82 combines an oscillator with a noise source, along with an optional click transient. The noise source comprises two types: hat and snare (more filtered). With extensive control over decay, pitch, and the Oscillator/Noise Mix – you’ll never run out of old school percussion action.

Sensitivity Trimmer – controls input trigger response
Decay Knob – controls overall decay
Decay Type Switch – Choose Normal/CV or Short. In Normal position, incoming CV can toggle Norm/Short. Approx 3V is the breakpoint of the toggle.
Oscillator Decay Knob – adds decay time to the Oscillator
Noise Type Switch – Choose Hat/CV or Snare noise types. In Hat position, incoming CV can toggle Hat/Snare. Approx 3V is the breakpoint of the toggle.
Pitch Knob – Initial frequency of the Oscillator.
Pitch CV Jack/Trimmer – control voltage for Oscillator Pitch
Bend Knob – The Decay envelope can affect Oscillator Pitch. 12-o’clock has no effect. CW from 12-o’clock adds to the initial pitch, CCW from 12-o’clock subtracts from initial pitch.
Click Switch – additional attack transient
Mix Knob – controls balance between noise and oscillator
Mix CV Jack/Trimmer – control voltage for Mix

Available mid-march. Be sure to check out my other cool modules available in my Reverb store.
More details on Modular Grid.

Tuesday, March 5, 2019

Feedback 106 Chorus Demo DIY SMD Version X-Vive Eurorack

Here it is. My fully assembled 106 Chorus by Feedback electronics.
I am not affiliated w/ Feedback or this project.
Just here to give a demo.
And to give some 'feedback' from my build of the surface mount version.

How difficult is the SMD version to build from a bare circuit board?
What are some pitfalls on this build?
How does it sound with the re-issue X-Vive chips?

0:00 Opening - Demo w/ Pittsburgh Synth Box PWM
0:30 Talking - MN3009 BBD Chips and X-Vive Re-issues
1:17 Demo w/ M-Audio Venom Polysynth Sawtooth Patch
1:34 More Talking - Building the SMD version
2:57 Pittsburgh Synthesizer Box - Square, Saw, Tri
4:24 Synthesis Technology E352 - Wavetable
5:10 Future Retro Transient
5:34 Arturia Drumbrute Impact
6:34 Mutable Instruments Rings
7:50 Venom Polysynth "Super Juvee" Patch

Recorded direct to Tascam DR-05.
No other effects.