Utility VCO Kit

Great tracking, low temperature related pitch drift, subsonic to supersonic frequency range, and a phat sawtooth core. In addition to the standard features there is a folded or “freaked” triangle out.


This synth DIY module is a full kit in the Eurorack format.

Availability: In stock

$64.99

Details

Details

Great tracking, low temperature related pitch drift, subsonic to supersonic frequency range, and a phat sawtooth core. In addition to the standard features there is a folded or “freaked” triangle out.

Inputs:

  • 1V/Oct
  • CV (Exponential) – Voltage at this input affects frequency, and is attenuated by the CV knob.  The CV knob ranges from fully off to fully open - when fully open, 1V = about three octaves.
  • RST (Hard Reset) - Add another oscillator output of similar frequency here to track them together, or use a wildly different frequency for new timbres and sideband frequencies.
  • PW – Changes the pulse width of the square wave.

 

Specs & Downloads

Specs & Downloads

manufacturer Noise Reap
HP 8
Depth No
+12V 33mA
-12V 30mA
+5V No
Additional Resources Build Guide Parts List Schematic

Reviews

Customer Reviews (2)

Great sounding VCOReview by HipsterSpeedball
This was really great to build. I followed the build guide on the Noise Reap site. The site has some really detailed photos. Notice the resistor that goes over the IC. I did run into a tuning issue. So I emailed and with quick response we found the issue. It's easy to mix up the 3.9 and 390r resistor. So pay attention to avoid issues (derp). Wave adjustment is easy. Pcb is clearly printed. Components neatly packed with cool retro looking magazine clippings.

This thing rips. The Freaked Saw is my go-to now. Very musical and simple to use. I can't imagine using another VCO. (Posted on 1/26/2017)
Nice Oscillator, Build Guide MIAReview by charliehuge
This is a nice-sounding oscillator for the money, and assembly isn't too tricky. Through-hole components all the way through, easy to get the 2 PCBs connected, will probably take you a few hours to get it together. Solid build design, too.

On the down side, the build guide is MIA from the internet and Noise Reap's website makes (almost) no mention of ever producing such a kit. I was able to figure out what went where by the (very nice) markings on the PCBs, looking up some part numbers, and going through the parts list spreadsheet and schematic. At one point, I thought I had an extra resistor and couldn't for the life of me figure out where it would go on the board. Turned out it was the 2k tempco that goes underneath the CA3046.

If you're up for some adventure, this is a good kit. But I assume the build guide would have made the process significantly easier. (Posted on 10/2/2016)

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