you don't know what you are talking about. go work for nasa and then tell me about it. They have great technical managers. Hubble mistakes, shuttle disasters, etc..... are spectacular failures but rare.
When a project was nearing completion, I started looking for the next project... hopefully larger... to work on. Why? Because I never wanted to baby sit a project afterwards... just maintain and modify from time to time for the experimenter..... way way too calm for me.
THx-RNMarsh
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It got past the door again. Gov. and hi-tech are way different, we routinely told management what they wanted to hear, some were so easy to fool, not that many were not fools or added any value. And in the semi industry no one worked for a salary during good times in the best of times it was only 5-10% of the total.
Slightly before my time top designers called the shots decided how much they would get or walk down the street and get it elsewhere. You should read up on the history.
That clipping looks like it might actually be somewhat euphonic. If I remember correct, one of your benchmarks for good measurement was the two tone test, which should have symmetrical distortion tails. Suppose this one has that too. Are you going to market it?
Richard. It's all public domain https://en.wikipedia.org/wiki/Rogers_Commission_Report
Plus a book from Feynman. So not sure what I don't know. NASA did great things with a cubic dollars budget in the 60s and 70s, but after that it all went horribly wrong.
Plus a book from Feynman. So not sure what I don't know. NASA did great things with a cubic dollars budget in the 60s and 70s, but after that it all went horribly wrong.
It looked to me like like RNM was trying to explain something in his post, not participate in a debate where both sides try to make the other look foolish.
Rule 1 says: Insulting, intimidating, bullying, harassing or other disrespectful or antisocial behavior [is not allowed].
Going forward, can we please try to conduct ourselves more in the spirit of the rules?
I don't see any insult aimed at Richard and I very much doubt I could intimidate him even if I actually tried. Certainly no harassment.
So really cannot see your point. Unless you are filling out your CV for the milk monitor role again.
So really cannot see your point. Unless you are filling out your CV for the milk monitor role again.
So as of now no response to my query about a board designer. I've still to hear back from Demian so perhaps he can help with that. Marce would be my personal choice or someone of his skill-set and also understanding of the real issues of audio and now mixing analog and digital. You guys tell me or am I wrong in thinking that the person doing the pcb and routing should be familiar with audio or can any competent EE with all the data sheets and build notes from AD and TI ,etc. do this?
Hey Daniel (DPH) know somebody at school who needs some money!
Hey Daniel (DPH) know somebody at school who needs some money!
From what I read the only growth market in audio is in self powered speakers and might I add that this is becoming a smart device paradigm. With really a little help here I know I can produce a superior product, something that would actually be appreciated for sounding good and being something that doesn't have to cost a small fortune to most. I'm to the point I am just going to jump in and start having tooling built for tbe enclosures and to produce the cones. After that it is buying magnets, voice coils, heatsinks, etc. and having the electronics package completed. Regulatory issues are another story, UL and such.
I think NASA are still doing wonderful things. All the more so on a limited budget. Numerous highly successful Mars Rovers, Juno, Pluto flyby, all the earth science stuff (much to the chagrin on some).
Too many ego's here. Life is what you make of it. I was very successful in the semi industry (VP and the stock plan that goes with it) but I got and get no pleasure out of treating people like ****. You need to be like that to get to SVP or EVP. I happily make coffee for the guy who comes to do some work on my house or clean my windows. Problem is, too many folks now days think they have a right to treat others like grunts. The result is the mess you see around you.
KHM, I can ping a couple friends who would appreciate rent money.
Anyone familiar with layout, reading datasheet carefully, and even a modicum of RF experience should be able to extract good performance. Someone not familiar with the appropriate connectors for the application and regulatory certifications is going to need a bit of extra time to sort thing out.
Also, Gmarsh (iirc?) has done some great work with the smaller TI pwm modules, so maybe he has some time or knows some folk?
Anyone familiar with layout, reading datasheet carefully, and even a modicum of RF experience should be able to extract good performance. Someone not familiar with the appropriate connectors for the application and regulatory certifications is going to need a bit of extra time to sort thing out.
Also, Gmarsh (iirc?) has done some great work with the smaller TI pwm modules, so maybe he has some time or knows some folk?
Bonsai: Your list there is all JPL stuff and I concur that JPL do amazing things.
Just had another idea on who 'might' be able to help. Let me ping out an email.
Just had another idea on who 'might' be able to help. Let me ping out an email.
There's a lot of great things going on at NASA. Certainly there's been some major duds along the way too, as should be expected when the scope is so large and their profile so prominent. And there was a need for a sea change in culture as highlighted by Challenger. And, yes, the Mars orbiter debacle some 10-15 years ago was wildly unacceptable.
So, perhaps backing off "all gone horribly wrong" would allow for some nuance.
So, perhaps backing off "all gone horribly wrong" would allow for some nuance.
Daniel: I used a past tense. I never said NASA c2017 hasn't learned. Richard was talking about things that happened many many many years ago and I answered based on this.
Thanks guys for reaching out for me. I'm off for the day but now have diy on my cell phone, a pain to read that way I must say! I'll look for postings during the day.
My last week got a bit interesting.
I ordered some 8,000' of custom cable, delivery was quoted as 7/20/2017. After 2 pushbacks and the "feel" of a third, I emailed my company contact that the late penalty on the project typically was 3 million per game. Installation would take 80 hours, shipping 3-5 days and connection and testing 2 days. First game 8/18/2017.
Finally got a real answer, one of their machines was down and they could not guarantee when it would be operational.
Checked stock on other similar cables from every major manufacturer, found 5,000' of a cable in stock that could work. I have 3,000 ish in stock. Cancelled the 8,000' order. Then got emails from my contact they would airfreight it to the job and it would be in on Monday.
Monday with delivery confirmation might just be a good day. That is also when we ship the loudspeakers. This is actually a small start to the entire project. 32 loudspeakers and eight 4 channel amplifiers replace inadequate original design for just a few thousand seats. Next year hopping to do the rest of the stadium.
Moral of the story, project managers like RMN are very rare and usually worth far more than they are paid. It takes a "Nose" to know when things are wrong and hidden from you.
RNM doing anything for the next week or two? 🙂
I ordered some 8,000' of custom cable, delivery was quoted as 7/20/2017. After 2 pushbacks and the "feel" of a third, I emailed my company contact that the late penalty on the project typically was 3 million per game. Installation would take 80 hours, shipping 3-5 days and connection and testing 2 days. First game 8/18/2017.
Finally got a real answer, one of their machines was down and they could not guarantee when it would be operational.
Checked stock on other similar cables from every major manufacturer, found 5,000' of a cable in stock that could work. I have 3,000 ish in stock. Cancelled the 8,000' order. Then got emails from my contact they would airfreight it to the job and it would be in on Monday.
Monday with delivery confirmation might just be a good day. That is also when we ship the loudspeakers. This is actually a small start to the entire project. 32 loudspeakers and eight 4 channel amplifiers replace inadequate original design for just a few thousand seats. Next year hopping to do the rest of the stadium.
Moral of the story, project managers like RMN are very rare and usually worth far more than they are paid. It takes a "Nose" to know when things are wrong and hidden from you.
RNM doing anything for the next week or two? 🙂
No time difference..it doesn't work that way. If the 15 nH per foot maximum difference is significant to the circuit, then the difference would simply be viewed as lumped inductance effects.
You say changes a small amount with frequency, why not show it with a same length of solid. Be careful with setup and wire dress though.
Definitely. How they got Watney back was totally amazing...
Isn't that a line from "Money for Nuthin" by Dire Straights??
John
Ed: You need a hardnosed purchasing dept for dealing with that. I still remember the great NAND flash drought of 1993. Mind you the mini factory near oxford have been known to hire a helicopter when the parts they need are stuck in a traffic jam. JIT can be very stressful. I guess for you trebly so as I assume some of your projects are a significant chunk of turnover.
I had a listen to your posts on FB, sounds good, bloody good, way best sound when running naked chassis.
Enjoy, be proud.
Dan.
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