You crossed the threshold with this one, but I’ll let go this time. You still have nothing to show, right? Other than “because I say so”, and lip service, of course.
As I meant with "in any case" "not in each and every case" there is - as usual - no reason for "FUD-shouting" ......
Wow, the word game reached a new peak.
Not surprising as I expect it is an American slang term as we really don't handle racial issues even adequately. But it is construed as a derogatory term by some.
The original I believe was actually "A spade is not a shovel." Clearly not insulting in any manner.
In the local steel mills at one time a coal shovel was called an Irish teaspoon. Intended to be insulting but today just a footnote in a local history book.
But of course I didn't think you intended any insult.
Kind reminds of my dads Stanley wood plane. It snapped in half right where the blade runs across the bottom plate (I think it was dropped). He brazed it together and continued to use it for about 20 years after that!
He was born in 1922 BTW.
No the magnetic field only distortion in the reed relays we used into a 10**12 Ohm load.
IIRC they were COTO and the resistors were Victoreen glass encapsulated.
Actually I think just checking for a harmonic in a current that low would be quite a challenge even given choice of load resistor. I think the best I could do would be to use a very high step up transformer into a lock in amplifier and average thàt over a long time period. I would would expect the third harmonic to be at least 100 dB down or more. Of course a high step up transformer would have high frequency bandwidth limits. Interesting problem, might run a simulation to see what the measurement limits might be.
Yeah, but I don't need or use DSD....
And, if you've not seen it, now is a good time:
Apollo 11 in Real Time
Still amazes me as much as when i was a young 'un.... An astonishing technical and human achievement....
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I''m glad to say this is derogatory, and also entirely not true unless used in a grossly-perverted sense: the first recorded use of 'calling a spade a spade in English', and the only way it is understood this side of the Pond, is 1542 - as a modern substitute for a Classical idiom:
e.g. popular source:
Call a spade a spade - Wikipedia
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“More interestingly a word that is still acceptable is "bulldozer!" This was the term used for the fellow in charge of the other slaves!”
Bulldozers have not been around that long Ed. You need to brush up on your etymology.
They were invented in 1923.
Bulldozers the machine may be recent and the gap in time between their use and the term meaning slave driver may be the reason why the name is acceptable.
Some of the old books I have seen defending slavery are at best interesting, but often become terrifying. The first one I saw was a graduation gift from a former southern belle to a now deceased relative. It was a defense against the destruction of the US south after the civil war. It claimed the motivation of many of the anti-slavery folks were their mistresses. It particulary named names of actual historical figures and there alleged paramours. Lots of other similar allegations.
As the extended family all kept books or small libraries I was able to find four more slavery subject books. Of course one must keep in mind modern slavery was not the same as biblical slavery even though some of the books quoted it.
I think the phrase was basically the slave owes the master his due or somethin similar. Of course it ignored biblical slavery terminated in the sabatical year and could be renewed once, but the second time required disfigurement. The reason for the existence of slavery in basically an agricultural society is simple. A bad or unsuccessful farmer would starve and the only thing of value to prevent that was essentially selling their labor. Hopefully while doing that they would pick up skills.
Essentially slavery was the great shame of the US and some consider it never to have been cleansed. Others point to the still active affirmative action laws. They actually still have an effect when I do many of the large sound system projects.
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Brought up but not beaten to death. Its back only because of Joe M descriptions. So, I just cut to the chase.
But there is no interest in any case to reduce speaker distortion by the electronic guys. Also, tried to reduce distortion by a direct assault on the driver which showed promise but stopped due to some other bright shiny object.
Think I'll go listen to my iPOD and forget about high-end until I get myself to Bangkok.
THx-RNMarsh
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Richard, I think the issue somebody raised was about using passive crossovers with current drive. There is no way to assure that all the current that is supposed to go into a speaker will go into the speaker if a passive crossover is used. The parallel impedance of the passive crossover going to the other speaker makes it looks more to the first speaker like it is being driven by a voltage source, since the impedance looking out from the first speaker terminals towards the amp will be lower due to the presence of the parallel impedance of the crossover network. In that case the source (amp output) does not still appear to have the high impedance of a current source. Hopefully that makes sense.
I discovered in my genealogical research, and then confirmed it with DNA testing that my great grandmothers grandmother was taken to South Africa as a slave in 1796. My MtDNA indicates that my maternal line is from the central Philippines which originated about 8000 years prior to that in either Futian (China) or Taiwan. Quite how she ended up in Africa I have still not been able to work out. The probable route was a raiding party from one of the neighboring islands and then sold on to Chinese traders. I know from records she was ‘bought’ in a slave market in India. Anyway, she got her freedom when she married a Dutch settler in the early 1800’s. I thought my paternal side was English (London). Turns out it’s 80% Irish - I’m still working on that bit though. As for my Dutch wife - turns out her paternal line is almost 100% Irish as well.
Family history - Fascinating what you can dig up.
Okay. Happy to wait until you have a chance to hear the best of HQplayer DSD512 on a good system and see how you feel about it then.
I was listening last night to Negativland's Big 10-8 Place on LP, it felt very good. Just what I think of CA.
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is this with same circuit as I showed or something else? LIke a pure current drive.
I would not be surprised to reduce the mid or a tweeter if it had a pronounced resonance peak in Z.
Current drive is a whole other Thing. I am comparing the voltage and the current sample - phase off by 90 degrees - and summing.
If I added a C in there to get a 90 degree shift at the Fr, I would get a more complete reduction in THD.
View attachment v-I FB ckt.pdf
I hope you can read this pencil sketch I made from around 1960-something.
THx-RNMarsh
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