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Build it yourself from a kit!
The Business Card Synthesizer is a tiny synth that can be connected to a Business Card Sequencer, other synth gear, or played by itself.
These fun little kits were introduced at Knobcon 2018 as a build workshop. Now you can get your very own.
Headphones can be connected directly to the output of the synth, and there are plenty of knobs to play with, so you can easily make noises anywhere. Great for learning about synthesizers!
We send you a board and a bag of parts so you can build it yourself. Difficulty level = medium (it’s all through-hole, but some of the soldering is kind of small). The kit includes the PCB, preprogrammed microcontroller and all required parts to build kit.
Features:
- Pulse, square, triangle, and sawtooth waves
- Glide
- 2 LFOs with pulse, square, saw, triangle and ramp shapes
- Attack / Decay
- Low-pass filter
- Sample and Hold
- Manual gate trigger (can be locked on)
- Course and fine-tune controls
Controls:
- S&H Button: Enables Sample & Hold, which disables the external CV IN jack and uses LFO1 and LFO2 to determine oscillator pitch. LFO1 sets the sample rate (SHAPE is ignored for this), and LFO2 is the wave that gets sampled.
- GATE Button: Manually turns on the gate so sound comes out of the synth. This control is momentary, but you can latch it on by tapping the S&H button while holding the GATE button down.
- COARSE TUNE: Adjusts the pitch of the oscillator up or down in large increments
- FINE TUNE: Adjusts the pitch of the oscillator up or down in fine increments
- SHAPE: Changes the shape of the wave produced by the main oscillator (VCO). Turning this control fully CW gives you a triangle wave. Start turning it CCW takes you through sawtooth/ramp, then at about the 12:00 position you get a square wave. Conti
NoVA Music Lover
Reviewed in the United States on July 10, 2020
This is a fun little project and the result is a nice little synthesizer that can work with the matching business card sequencer.The instructions were very clear and assembly went quickly. There were no real challenges, but I recommend that new builders do a couple of soldering practice kits first. I’d also recommend that you use a decent temperature-controlled soldering station with low temperature rosin core solder.I typically use super-thin 63/37 soldier and use heat sinks when soldering semiconductors and I’ve had good results.One negative is the lack of response of division six’s “support“ department. My first business card synth was dead when I completed the build. No lights, nothing. I’d asked them for a schematic or test points I could use to determine the cause of the issue. I know that we’re all suffering the “Covid Craziness”, but it’s been quite a while and it’s been complete crickets from their end.The second one I built worked fine with no issues. If I ever hear back from their “support” people, I plan to resurrect the dead synth and give it to one of my kids.
Jeff S
Reviewed in the United States on August 4, 2019
High quality kit, fast shipping, and was fun to build! Plenty of interesting sounds to be found...
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