What's this? It's a simple but very stable triangle and square wave oscillator. The main purpose of this module is to be used either as a LFO (Low Frequency Module) or as the main oscillator in you...Read More…
It's a simple but very stable triangle and square wave oscillator. The main purpose of this module is to be used either as a LFO (Low Frequency Module) or as the main oscillator in your drone synth. It can be incorporated as well in a modular Synth (Eurorack for example).
In version 1.1, TL082 has been replaced by TL084. See my blog for more informations.
The circuit is a classic integrator and Schmitt Trigger duo. The "integrator", (a constant current generator) charges and discharges a capacitor. The Schmitt Trigger flips over the charge/discharge cycle.
The frequency range is impressive, from less than a Hertz to thousands of Hertz. Frequency is adjustable with the potentiometer. No CV input. Simple.
You can use it to drive CV-able modules. Just plug a mono jack and link it to your VCO or VCA or VCF or any other VCxxxx. You can also use its output as an audio output signal. Be carefull though, output level is way out of "line" level standards.
Check my Attenuater/Inverter module if you need to adapt or invert its output.
Max Output Peaks : +10V / -10V.
Assembling this module is pretty easy and should take less than an hour. You only need cutting pliers, solder tin and an iron.
Power requirements: +12V / GND / -12V @ less than 20 mA Eurorack power connector available.
The PCB is only 5 x 5cm
In the Kit option, you will find the following: Resistors, 16mm potentiometer, connectors, capacitors, IC and its socket.
Currently, no faceplate available. You want one? Tell me!
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La Poste: Priority Mail, 20 to 100g World
Standard Priority Mail by La Poste, for letter format package, under 100g, whithout tracking code.
La Poste: Parcel, up to 500g - World
Colissimo International by La Poste, for parcel format package, under 500g, whith tracking code.
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I'm David, from France.
I design circuits, mostly for musical and synth projects. I love to understand electronic circuits, to discover new technics and create my own designs.
I only sell surplus products from personal projects. I make electronic projects as a hobby. I have, from time to time, spare components, surplus PCBs, test modules… They are leftover from my personal project designs.
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