Stack Exchange
log in

Kevin Krumwiede

 Electrical Engineering

A place to talk with friends from the EE community about vacuu...
2
Kevin Krumwiede
Mar 20, 2024 15:49
oh, and the whole horizontal row of terminals with the "extender port" on the 234A doesn't exist on mine
Kevin Krumwiede
Mar 20, 2024 15:44
compared to the PAD-234A: the momentary toggle switches are swapped with the power switch and LEDs. the power terminals are breadboard style instead of banana plugs. and there is no output voltage control for the function generator. otherwise it's identical to the PAD-234A. i see some pics that look like the 234A identified as just PAD-234, but maybe they're actually -A models and mine isn't.
Kevin Krumwiede
Mar 19, 2024 04:45
I can't find anything about this thing online. No references, no pictures. I wonder if it's a prototype or super early production model, before whoever made it became RSR. Does DGLB mean anything to anyone?
Kevin Krumwiede
Mar 19, 2024 04:39
I have an analog/digital trainer that looks a lot like an RSR PAD-234. Its top plate looks very similar, and many of the components look identical, but they're arranged differently. The only marking I can find on it (other than component IDs) is "DGLB-1 Copyright '85" on one of the circuit boards.
Kevin Krumwiede
Mar 19, 2024 04:37
I found my way here from a comment on a meta question similar to one I was thinking of asking... electronics.meta.stackexchange.com/questions/6454/…
 

 Discussion on question by User: Inter…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Jun 13, 2019 05:59
"there wasn't really any whiteboard coding problems" - You should be worried if there were. Such tests are worse than useless; they bias the selection process toward the extremely inexperienced. Get hired at a place that gives coding tests, and you will be pulling the dead weight of a bunch of incompetents (if you aren't one yourself.)
 

 Discussion on answer by Philipp: What…

Imported from a comment discussion on politics.stackexchange.c...
Kevin Krumwiede
Jul 17, 2018 14:46
Calling this a "conservative" view is technically correct for some definition of "conservative", but probably misleading for many readers. Not all "liberals" reject it. Some left-libertarians (to use an example I'm familiar with) regard wealth inequality as not only inevitable, but beneficial for exactly this reason, while objecting to the extreme degree of inequality that exists in our society.
 

 Discussion on question by Deoro: Why …

Imported from a comment discussion on philosophy.stackexchange...
Kevin Krumwiede
May 3, 2018 08:39
So you would actually fault a person for committing an evil act under the threat of immediate death? That's not high philosophy, that's ignorance of psychology.
 

 Discussion on question by durantjm198…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Apr 21, 2018 01:39
Don't worry. I've encountered people with the title "Security Consultant" who don't have the first clue how SSL works.
 

 Discussion on answer by Tolegen Izbas…

Imported from a comment discussion on softwareengineering.stac...
Kevin Krumwiede
Oct 10, 2017 18:24
@milleniumbug If the restriction was documented but unimplemented, the user code was always broken.
 

 Discussion on answer by Dan Mills: Wh…

Imported from a comment discussion on cseducators.stackexchang...
Kevin Krumwiede
Sep 11, 2017 17:33
I'd add knowing when and how to identify third party solutions that will save you vast amounts of time and money. A lot of the mess you speak of is the result of people coming out of school thinking, "I can write that" when they should be looking for an off-the-shelf solution.
 

 Discussion on question by i--: How to…

Imported from a comment discussion on cseducators.stackexchang...
Kevin Krumwiede
Aug 29, 2017 11:12
@PeterTaylor Writing a compiler is about as far as one can possibly get from the everyday reality of programming as a trade skill.
Kevin Krumwiede
Aug 29, 2017 11:12
@kasperd Yes, being a good programmer requires a specialized education. That education is usually obtained on the job, because CS does not deliver it. CS is to a programmer as linguistics is to a bilingual sales clerk, or a degree in architectural engineering is to a handyman.
Kevin Krumwiede
Aug 29, 2017 11:12
@kasperd I'm talking about the difference between knowing how to formally describe the complexity of an algorithm and knowing how to pick the right list implementation from a standard library. The intersection of those things is a mere passing familiarity with O-notation. Perhaps I should ask instead, do these students aspire to careers in academia, or industry? There's a growing movement to "teach kids to code", and for that, the academic approach is the wrong one.
Kevin Krumwiede
Aug 29, 2017 11:12
@MickLH Knuth has never been a programmer in the sense I mean. He has always been a researcher and academic.
Kevin Krumwiede
Aug 29, 2017 11:12
Are you trying to produce good programmers or good theoreticians? Making one ruins the other.
 

 Discussion on answer by ohwilleke: Wh…

Imported from a comment discussion on politics.stackexchange.c...
Kevin Krumwiede
Aug 19, 2017 20:21
@TimB The most glaring example is when they announced that they were collecting evidence of a spike in hate crimes following the 2016 election, received hundreds of reports, and then presented it as evidence of a spike in hate crimes.
Kevin Krumwiede
Aug 19, 2017 20:21
@R.. "Have you stopped to consider that maybe the SPLC's methodology has not changed at all" - That wouldn't favor them, because their recent methodology is extremely flawed.
 

 Discussion on question by CaptiveWolf…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Jun 29, 2017 16:08
It depends whose nasty broken API you're trashing. If it's internal, you should probably be more tactful. If it's Google's, flame away.
 

 Discussion on answer by user4012: Why…

Imported from a comment discussion on politics.stackexchange.c...
Kevin Krumwiede
Jun 13, 2017 08:17
There is a fourth reason: identification. It's the same principle behind the common rule (in the US) that everyone is required to remove their hats and sunglasses upon entering a bank.
 

 Discussion on answer by Alexandre Vai…

Imported from a comment discussion on gamedev.stackexchange.co...
Kevin Krumwiede
Jun 6, 2017 21:00
@ShuvoSarker One possibility: some game engines may allow (or even require) you to provide your own shaders. So the graphics programmers may be writing GLSL or HLSL.
 

 Discussion on question by Emissarry: …

Imported from a comment discussion on scifi.stackexchange.com/...
Kevin Krumwiede
Jun 6, 2017 19:58
One word: Risa.
 

 Discussion on answer by Joe Strazzere…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Apr 4, 2017 16:30
I wouldn't assume that the team lead knows anything.
 

 Discussion on answer by MichaelK: Usi…

Imported from a comment discussion on worldbuilding.stackexcha...
Kevin Krumwiede
Mar 10, 2017 22:46
Is "Don't do it" a valid answer? TL;DR: yes.
 

 Discussion on answer by user2448131: …

Imported from a comment discussion on history.stackexchange.co...
Kevin Krumwiede
Jan 30, 2017 22:23
And this doesn't even consider the height of the target. The opposing ship's superstructure will be visible from even further away than its hull at the waterline.
 

 Discussion on question by Marian Paźd…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Jan 12, 2017 23:23
Does the current project involve exactly the same technology for which the applicant was a team lead? I could call myself a very senior developer or an absolutely green junior developer, depending on the specific technology.
 

 Discussion on question by El Shteiger…

Imported from a comment discussion on politics.stackexchange.c...
Kevin Krumwiede
Jan 4, 2017 17:12
"Jewish" has at least two meanings. In practice if not in law, civil rights in Israel are based on Jewish ethnicity, not Jewish religious affiliation.
 

 Discussion on answer by Kaz: How much…

Imported from a comment discussion on worldbuilding.stackexcha...
Kevin Krumwiede
Oct 3, 2016 03:07
@Kaz The execution is not the hard part, either. The hard part is knowing what will be successful.
Kevin Krumwiede
Oct 3, 2016 03:07
Why invest in Facebook when you could invent it?
 

 Discussion on question by Hey: How to…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Sep 16, 2016 02:47
In the United States, you could offer to testify on his behalf if he challenges his termination for cause in order to obtain unemployment benefits.
 

 Discussion on question by Nav: Would …

Imported from a comment discussion on worldbuilding.stackexcha...
Kevin Krumwiede
Sep 15, 2016 18:11
@njzk2 It's probably not too arrogant to think our science is pretty good. See Asimov's essay on The Relativity of Wrong. (Then again, any hypothetical interstellar exploration may require that our current science is significantly wrong.)
 

 Discussion on question by Frank Puffe…

Imported from a comment discussion on programmers.stackexchang...
Kevin Krumwiede
Aug 19, 2016 02:57
@FrankPuffer Project management isn't supposed to be easy. Making good time estimates with the aid of an issue tracker is a learned skill. Copy/paste programming is a cheap, dirty shortcut that ends up costing the company dearly after the wanna-be project manager has moved on.
Kevin Krumwiede
Aug 19, 2016 02:57
"So from a project management perspective, it is great to solve a task by copying some existing code 100 times and make some minor adaptations to each copy, as required." Only from a very short-sighted (or sleazy) perspective. You might deliver faster that way, but the maintenance cost/TCO of those 100 copies is at least 100 times greater than following DRY.
 

 Discussion on answer by Jarrod Robers…

Imported from a comment discussion on programmers.stackexchang...
Kevin Krumwiede
Jul 9, 2016 10:19
What you say is "very clear", is not clear at all.
 

 Discussion on question by Jacob: How …

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Mar 4, 2016 19:08
The rationale for the layoff makes no sense. Is that their explanation or yours?
 

 Discussion on question by Trickylastn…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Feb 15, 2016 21:50
"the system we work on lacks any kind of documentation" - Your manager is grossly incompetent based on that fact alone.
 

 Discussion on answer by Kent Anderson…

Imported from a comment discussion on workplace.stackexchange....
Kevin Krumwiede
Dec 22, 2015 01:52
@MrLore It doesn't actually matter whether it's baloney or not. Either way, it has exactly the same effect on his suitability for employment.
 

 Discussion on question by Snake Eyes:…

Imported from a comment discussion on security.stackexchange.c...
Kevin Krumwiede
Oct 18, 2015 17:16
What country are you in? In the US, you could probably find a router that supports WPA2 for $5 at a thrift store.
 

 Discussion on question by HDE 226868:…

Imported from a comment discussion on worldbuilding.stackexcha...
Kevin Krumwiede
Sep 1, 2015 22:26
Darmok and Jalad at Tanagra.
 

 Discussion on answer by Shane: Why do…

Imported from a comment discussion on scifi.stackexchange.com/...
Kevin Krumwiede
Aug 31, 2015 17:58
@Shane It seems like critical systems are always going down at just the wrong moment anyway.
 

 Discussion on answer by Nathan Rabe: …

Imported from a comment discussion on ux.stackexchange.com/que...
Kevin Krumwiede
Aug 6, 2015 16:24
It obviously doesn't match some users' mental models. Tyranny of the majority.
 

 Discussion on question by ilhan: My c…

Imported from a comment discussion on programmers.stackexchang...
Kevin Krumwiede
Jul 14, 2015 02:51
@IanKemp AFAIK, that botched patch caused problems on all Win7 64 SP1 machines. I don't know exactly what the market share of that particular version was at the time, but it was not a "tiny subset" of users by any means.
Kevin Krumwiede
Jul 14, 2015 02:51
@IanKemp Microsoft has definitely pushed things live with such obvious problems that they would have been revealed by even the most rudimentary testing. Whether they failed to test or simply failed to care remains unknown.
Kevin Krumwiede
Jul 14, 2015 02:51
I'm pretty sure that Facebook tests changes on production servers. Everybody from Microsoft to Linus Torvalds is guilty of deploying untested code, sometimes with disastrous consequences. Sadly, this is the norm in our industry, and it's really hard to convince the suits to pay for proper QA when the big players don't.
 

 Discussion on answer by ArtOfWarfare:…

Imported from a comment discussion on ux.stackexchange.com/que...
Kevin Krumwiede
Apr 8, 2015 03:42
@NateEldredge While not universal, this type of control is certainly common. As for which side is hot, when there are separate hot and cold knobs as the OP describes, hot is almost universally on the left.
 

 Discussion on answer by Rob Jeffries:…

Imported from a comment discussion on physics.stackexchange.co...
Kevin Krumwiede
Mar 16, 2015 02:17
@RobJeffries Apparently I don't have enough rep to post an answer.
Kevin Krumwiede
Mar 16, 2015 02:17
This answer is wrong, as can be proved by a simple experiment. View a field of stars through an optical instrument that is slightly out of focus, and the colors become clearly visible despite the fact that throwing them out of focus makes them even dimmer. The correct answer is that stars, despite their small apparent angular size (effectively zero before the imperfections of your eye blur them slightly), are still quite bright per unit of apparent angular area. They saturate all your cones, making them appear white.