North Coast News

Temperature compensation with NTC thermistors
2017 Oct 22nd

Temperature compensation with NTC thermistors

The panel contractor says they dispatched the first production batch of MSK 007 Leapfrog VCF panels to me on Friday, and those are the last remaining physical items needed before I can launch the module; so I'm still hopeful that I can ai… [Read more]

The Celebrated Leaping Frog
2017 Oct 15th

The Celebrated Leaping Frog

I've spent most of this week working on the second and third prototypes for the Leapfrog VCF. I'm hoping to have this product available for sale by the end of the month - maybe in time to have some kind of spooky Halloween tie-in for the launch.… [Read more]

Nucleosynthesis
2017 Oct 8th

Nucleosynthesis

Here's a diagram of something called the CNO process, encompassing many of the nuclear reactions by which stars shine. I thought it would be fun to "sonify" the CNO process by building some kind of simulation of a star and making it generate… [Read more]

Notes on notes on the plane
2017 Oct 1st

Notes on notes on the plane

I finally got the Leapfrog prototype PCBs from Shenzhen, so I hope to have some progress on that very soon. Meanwhile, Muffwiggler is still down, and the word is that it's because Mike is in hospital. Everyone's thoughts and prayers are with him… [Read more]

Year end
2017 Sep 24th

Year end

North Coast's first fiscal year ends with this month, and I have a bunch of small news items and progress updates.First up, the Leapfrog VCF. This is the big flagship module that I think people are waiting for, and I was supposed to have the next pr… [Read more]

Fun with fractal chord progressions
2017 Sep 17th

Fun with fractal chord progressions

I make a lot of music that is intended to be "ambient": something you can put on in the background and have it create a mood without demanding conscious attention in the foreground all the time. I'm also interested in automatic generation: I'd like t… [Read more]

Circuit board shopping
2017 Sep 10th

Circuit board shopping

This week I'm planning to order the prototype boards for the Leapfrog Filter, and it makes a good opportunity to go through some common questions beginners ask about shopping for PCBs. When you go to buy PCB production services you're typically hit w… [Read more]

Video picks
2017 Sep 3rd

Video picks

I've been busy this week dusting off the design for the Leapfrog Filter. I really did most of the work on it back in 2016, and I even built a prototype which works pretty well, as you can hear in audio demos like this one. I'm hoping that will tran… [Read more]

Understanding stabilization capacitors
2017 Aug 27th

Understanding stabilization capacitors

Here's a simplification of the output driver circuit from the MSK 008 Dual VC Octave Switch. It's a familiar inverting op amp circuit with gain of -1. The op amp's positive input is tied to 0V; it will act to force its negative input to also… [Read more]

Free EDA software rundown
2017 Aug 20th

Free EDA software rundown

The MSK 008 Octave Switch is planned to launch tomorrow and I've already posted the manual; so I thought it would be fun for this week's Web log entry to introduce some of the software tools I use for producing, and especially for documenting, mod… [Read more]

Reality check: HP
2017 Aug 13th

Reality check: HP

Modular hobbyists love to invent fantasy modules. We'll sit down and sketch out just exactly the modules we wish we had in our racks, and then either post the mock-up images to Muffwiggler and leave it at that, or take it a little more seriously… [Read more]

Post-launch thoughts
2017 Aug 6th

Post-launch thoughts

The shop has been open a few days. Response hasn't been all that I hoped it would be. There was a burst of traffic on the first day, especially when I posted an announcement on Muffwiggler, but not the level of third-party referrals, social sharing… [Read more]