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madengr

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madengr
·4 года назад·discuss
madengr
·4 года назад·discuss
madengr
·4 года назад·discuss
madengr
·4 года назад·discuss
The RTX is really slow for FP64.
madengr
·4 года назад·discuss
[dead]
madengr
·5 лет назад·discuss
We probably had 10+ 8566A/B at work, and the CRT power supply is the only failure (slow degradation) I have seen.

I have one at home and I’ll likely get the LCD retrofit kit.
madengr
·5 лет назад·discuss
HP 8566B spectrum analyzer and 8510C network analyzer. HP RPN calculators. Really any late 80’s and early 90’s HP test equipment. Built like tanks and designed by engineers for engineers.
madengr
·5 лет назад·discuss
Good politics is subjective.
madengr
·5 лет назад·discuss
I agree. I had two weeks off between grad school and my current job. I’ve been maxing out my 401k for 25 years and have zero debt (mortgage paid off 2 years ago). Could actually retire now at 49.
madengr
·5 лет назад·discuss
Sounds like my employer, and I’ve been on-site for 1 year. Their excuse for 2% raises was that the economy was bad, despite record earnings and productivity during the pandemic. Now that inflation is 5%, I’m gone with another 2% raise.
madengr
·6 лет назад·discuss
What's funnier is to see circuit simulations with bypass capacitors in parallel with ideal voltage sources.
madengr
·6 лет назад·discuss
Ha ha, "If you are very math-oriented maybe it will work for you". The AOE is definitely not math oriented, and not what is typically used for EE courses. If AOE was used for undergrad EE, then 2/3 wouldn't flunk out. Don't get me wrong, it's a good book, but it's definitely not for the math oriented.
madengr
·6 лет назад·discuss
Good summary. I'd also add that 80% of the difficulty is spent on optimizing the last 20% of performance (i.e. the last dB), which is what separates the hobbyist from the pros, or the art from the quantitative.
madengr
·6 лет назад·discuss
Looks like a neat book. I’d stress early on, once you get to inductance and capacitance, that the energy in a circuit is contained in the fields, which are the consequences of charges (or vice versa). It’s the fields that matter.

When you flip that switch, the drift velocity of charges in (on) the bare copper is only a few cm/s, but the field propagates at the speed of light, between the wire and it’s return (mathematically convenient ground). The energy is around the wires in the fields. The only true ground is at infinity.

If you can get that drilled into your head from early on, it will be beneficial to high speed circuits and RF. Introductory books never do that.
madengr
·7 лет назад·discuss
Do you realize how much full sized diesel trucks cost? They typically start at $50k, and can be configured close to $100k. People are buying them. Whether they can afford them, who knows, but they do sell. Flyover country is not broke. Plenty of these expensive trucks around here; I drive a Leaf.

Good point though about the outdoor charging, but running an external charger is cheap and easy on rural property. Some diesels have block heaters anyway.

What will be interesting to see is the range when towing. This thing will have the torque of 350 diesels, but what about the range in towing, compared to dual tanks. Operating costs could be far less with electricity.
madengr
·7 лет назад·discuss
Mine is actually on the side of the house, behind the trash cans (also forbidden). The HOA hasn’t messed with me because I let the HOA guy borrow it. Utility trailers are very useful.
madengr
·7 лет назад·discuss
Actually sub-urban trucks, but that was lost in all the comments. For sub-urban, I’d expect an average of urban and rural.
madengr
·7 лет назад·discuss
Yes, mostly crap.
madengr
·8 лет назад·discuss
Yes. The space shuttle had reusable boosters. Retro rockets for landings were used in th Apollo and Viking programs.
madengr
·8 лет назад·discuss
Asimov on Physics. Pretty much Asimov on anything.