Kent Lundberg

@doctoranalog.com

154 Followers 169 Following

Analog-circuit and control-systems engineer, oscilloscope collector, synthesizer geek, amateur historian, unrepentant bibliophile. He/him.

Ceramic DIP integrated circuit package
Typeset equations, showing (a) All symbols in italic font, versus (b) variables in italics, but math constants, operators, and labels in roman font.
In order for non-violence to work, your opponent must have a conscience.
Four 5.25" floppy disks, including disks from VisiCalc, Commodore, Verbatim, and Elephant Memory Systems.
Steve Jobs and Bill Gates with bad haircuts.
"In order for nonviolence to work, your opponent must have a conscience." --- Stokely Carmichael.
Robert J. Widlar (1937-1991)
Fig. 2. The low voltage reference in one of its simpler forms.
A useful on-card regulator must include everything within one package, including the series-pass transistor. The author has previously advanced arguments against including the pass trasistor in an integrated-circuit regulator [1]. First, there are no standard multilead power packages. Second, integrated circuits necessarily have a lower maximum operating temperature because they contain low-level circuitry. This means that an IC regulator needs a more massive heat sink. Third, the gross variations in chip temperature due to dissipation in the pass transistor worsen load and line regulation. However, these problem can be largely overcome using the new techniques, especially for the kind of regulator required by digital systems.
Wall of text... circuit interactions with the temperature gradient, leakage, and cost, are all bad...
"Designing Positive Voltage Regulators" by Robert J. Widlar
I shall try some of your burned replicated bird meat.
I’m not falling for that hot take that’s clearly someone with a fetish for getting yelled at I refuse to participate in that kind of perversion
It's important to note here that our understanding of Kennedy's disbelief in germ theory isn't based on speculation or deduction; it's based on Kennedy's own words. He wrote an entire section on it in his 2021 book vilifying Fauci, titled The Real Anthony Fauci. The section is titled "Miasma vs. Germ Theory," in the chapter "The White Man's Burden."
It's important to note here that our understanding of Kennedy's disbelief in germ theory isn't based on speculation or deduction; it's based on Kennedy's own words. He wrote an entire section on it in his 2021 book vilifying Fauci, titled The Real Anthony Fauci. The section is titled "Miasma vs. Germ Theory," in the chapter "The White Man's Burden."
An IBM-branded DSDD 5.25-inch floppy disk.
e^(i pi) + 1 = 0
### COMMODORE BASIC ### 31743 BYTES FREE READY.
A pile of 3.5-inch floppy disks
Stokely Carmichael saying, "In order for non-violence to work, your opponent must have a conscience."
John Bardeen (left), Walter Brattain (right), and William Shockley (seated). These three men won the 1956 Nobel Prize in Physics for the invention of the transistor. Bardeen is giving some wicked side-eye here.
A polar plot of the frequency response of the loop transfer function of a feedback system that does not encircle the -1 point.
If a monkey hoarded more bananas than it could eat, while most of the other monkeys starved, scientists would study that monkey to figure out what the heck was wrong with it. When humans do it, we put them on the cover of Forbes.
In number theory, the sum of the first n cubes is the square of the nth triangular number.
Screen capture from Pulp Fiction. With his gun pointed at the soon-to-be victim's head, Jules is asking, "Four digit years: Do you use them?"
Web form error message. User has entered "12/03/2024". Error message complains "Please enter a valid date, e.g. 12/31/11.
Klingon Commander Kurn states, "I shall try some of your burned replicated bird meat." Scene from Star Trek Next Generation, season 3 episode 17.
MAX HEADROOM Never forget 11/22/87
A comic. Panel 1: A figure says "I want things to be different" Panel 2: The figure smashes everything in the room with a baseball bat. Panel 3: Surrounded by wreckage, the figure says, "oh no"
Do you remember The 21st night of September? Love was changin' the minds of pretenders While chasin' the clouds away
Software failure, Press left mouse button to continue. Guru meditation.
Real estate sign that helpfully claims "not haunted"
Elizabeth Holmes as Thanos.
Picture of a sleeveless 5.25-inch DSDD floppy disk, IBM brand.
A pile of colorful 3.5-inch floppy disks
Screenshot from the final episode of Babylon 5, showing six of the main characters in an elevator, Zack Allan, Delenn, Susan Ivanova, Vir Cotto, Dr. Stephen Franklin, and Michael Garibaldi.
Photo of arcade cabinets for Tron and Robotron, significantly decayed, with weeds and ivy growing in them.
"Journalists' Guide to UAS Identification" which shows a variety of unmanned aircraft systems, ranging in size from a toy quadcopter to a RQ-4 Global Hawk, but labels them all as "drones"
Valentine's Day card with Han Solo, captioned "I know".
Never forget. 2007 Boston Mooninite panic.
tweet I’m not falling for that hot take that’s clearly someone with a fetish for getting yelled at I refuse to participate in that kind of perversion
An elf? In this house? You listen to me and listen good, never trust the fae and never EVER extend an invitation. I just finished warding, for goodness sakes boys
I shall try some of your burned, replicated bird meat.
MAX HEADROOM
Fun fact: Columbus is in the Bad Place because of all the raping. slave trade, and genocide.
Empathy is cool, actually
Harry, a ginger bunny, reading "The Collected Angers" by Mike Monteiro.
Front panel from a DEC Industrial11 (rebranded PDP-11/40)
screenshot of merriam-webster.com dictionary showing that the second definition of the word "tweet" is "a post made on the Twitter online message service"
Lexicon Vortex "Audio Morphing Processors", Lexicon LXP-1 reverb and effects module, Lexicon LXP-5 reverb and effects module, and two dbx 1046 quad limiters
Casio keyboard that connects to your TV for karaoke and lessons
TRS-80 computers
Atari Super Pong