Primitive
Primitive is essentially a Beehive V.2. Loaded with lots more of the 40106 experiments I came up with when developing the Nasty pedal. The idea being to change the pitch of 6 oscillators at once by simply changing the power on the IC with a sample and hold (S&H) circuit. Which is really wild sounding considering you can tune the 6 oscillators individually. Then just making 6 banks of this for a total of 36 oscillators going wild at the same time! Of course including the controls I developed with Analog Weapon (originally for the Cozy pedal) to make it possible to switch between LFO, S&H, or play by a button press.
Primitive User Guide
This pedal runs on a single 9V battery (unclear for how long, hehe) or 9VDC power (2.1mm jack: center-negative).
Controls:
Primitive has 6 seperate banks of 6 oscillators. Each bank with a dedicated control circuit and volume knob (color coded). Plus optional individual outputs that all sum up to “red” (the leftmost output).
Each control circuit is simply powering a 40106 which then provides all the oscillators. An analog LFO is run into a LF398 chip that is being clocked by a microcontroller which lets us control the 40106 in three different modes:
- Manual Mode, where you “sample” by either pressing the black button or connecting a 5V CV-Clock to the 3.5mm jack on the back (it will control all the 40106s at once).
- Auto mode, where the S&H is automatically, erm, sampling and holding. You set the rate by either tapping on the black button or adjusting the CLK knob. It will automatically switch over to whatever you change last but since the circuit is rather chaotic it has a tendancy to prioritize the knob.
- LFO Mode, whenever entering manual mode from auto mode the S&H will be in a “open” state of constantly sampling the analog signal. This makes it follow the LFO directly and you can now enjoy massive rising and falling drones in a wide range of tempos.
Inside Trimpot: On the inside you will find dedicated LFO “shape” trimpots for controlling each circuit. Since the LFOs are analog this simply sets how fast a large capacitor charges/discharges. Feel free to tweak these a tiny bit if you find that I didn’t manage to set them all to a nice round LFO. (I colored inside so you can easily spot which is which!)
Enjoy!