Monthly Archives: January 2022

OK, I swear, I’m done subjecting y’all to this dumb little circuit.  I’ve added a switchable range, which gets me down to ~ .1Hz, and another pair of transistors fro a clean output pulse of about 8v, suitable for Eurorack … Continue reading →

When in doubt, add another transistor. I’ve got it working from ~ 1Hz to 11Hz.. Not too bad, though I’d like even more range on a single control. View this post on Instagram A post shared by Paul Carbone (@toomanyoscilloscopes)

The thought occurred to me late last night that I could replace the resistors that governed the rate of charge for the capacitors with transistors so that I could vary the rate. Turns out I was right! View this post … Continue reading →

I wanted to look at this circuit in more detail to understand what’s going on. I’m probing the collector of Q2 on the yellow trace, and the base of Q2 on the green trace. Note that the time off and … Continue reading →

How do you blink a light with only discrete components? The Astable Multivibrator, which is a type of relaxation oscillator. ‘Astable’, meaning it’s keeps flipping between two states, and never rests in one (we’ll see this later when exploring the … Continue reading →

We’re officially starting the 50 days tomorrow, but I started layout out parts and ended up jumping in.  This is obviously not how you’d make a light blink on it’s own, but I just stated messing around with a few … Continue reading →

As I said in the first post, I have a moth-like draw to blinking lights. It’s not just blinking lights; More specifically, it’s industrial & scientific control panels & user interfaces from the mid 20th century.  They were chock with … Continue reading →

This blog is intended to chronicle my first attempt at a daily routine of experimentation & iteration across a few technology domains. This is modeled after the ‘100 Days of Making‘ class at NYU’s Interactive Telecommunications Program. Paula Ceballos is … Continue reading →