Apr 12, 2020
In this time of global turmoil, the CBA Podcast once again
proves to be your one-stop source of distraction and meh-grade
We start off by a quick list of how to keep
busy in a sort of useful way, followed by a short talk
about a 230 Vac test-jig and designing for
Already mentioned in a previous episode, I finally got around to
building a digital driver box consisting of
push/pull FET and open-drain drivers for a low-voltage digital
input-signal. And that's not the only thing that got finished: I
also got around to make mechanics and software for a spiky
icicle LED ball decoration thing, which worked out quite
A fuzzy talk about getting to know your electronics
equipment more intimately concludes this episode. If you
are looking for useful things to do there, perhaps this is worth a
- the ongoing RetroChallenge 2020/04
lasts until May, and is now hosted by Mark Sherman
- please leave 5G towers alone, and instead read
Wikipedia's article on
wireless device radiation and health
- some podcasts I listen(ed) to, in random order:
- Eaten By A Grue (Carrington
Vanston & Kevin Savetz), about Infocom text adventures (even if
you never play(ed) those, like myself)
- DoubleTake (Carrington
Vanston & Shari Creamer), where 2 people review 1 mystery movie
- Henry & Heidi
Podcast (Henry Rollins & Heidi May), true stories from the
past. Most have to do with music/punkrock, but probably accessible
if you're not 100% into that.
- SledgeCast (Gerry
something and Iain something), talking about "Sledge Hammer!"
TV-episodes, one each episode. I binge-listened to these while
driving to Hannover and back.
- The Amp
Hour (Dave Jones & Chris Gammell), about electronic
engineering. Occasionally have interviews that go off on a tangent,
which I like.
- Rationally Speaking
(Julia Galef), about the borderlands between reason and nonsense
(unquote). For some reason I can't listen to this while driving,
but while walking on a treadmill everything's fine. Go figure.
- Damn Interesting
Podcasts (Alan Bellows), true stories, told in fitting
atmosphere. Creepy. Weird.
- Retro Computing Roundtable (Paul
Hagstrom, Earl Evans, Carrington Vanston, Michael Mulhern, etc etc)
- Welcome to Night Vale
(Joseph Fink, Jeffrey Cranor and others), imaginary weird reports
about an imaginary desert town. Recommended to me, I like it,
haven't heard more than the first few episodes, and as with
Rationally Speaking, I can't seem to listen to this while driving.
- Joe Rogan Experience (Joe Rogan
and guests). Sit down for an hour or two to get to hear about
people you might not even have considered otherwise. Or skip to the
next episode, of course.
- You Don't Know Flack (Rob
O'Hara), telling stories about his own life. This guy can really
tell a story, very funny and entertaining, even if you're not
really into the subject at hand.
Sadness (Rob O'Hara), about B-movies that are so bad they're
good. Very funny and entertaining.
- video of my LED
icicle spike ball decoration on YT
- video of Pintek
DP-25 differential probe weirdness on YT
Some pics of the things mentioned in this episode:
230 Vac test-jig, using DIN-rail components and a big block of
digital driver/amplifier box, innards
LED icicle ball, innards. The small PCB is an AVR micro and 2
16-channel constant current LED-drivers.
painted with acrylic paint and spraypaint. Should probably just
have 3D-printed this in the first place...
LED icicle ball, full brightness, sitting on desk