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Drawing Board / Re: Dallas Rangemaster info
« Last post by Tubetec on Today at 08:54:50 PM »
Yes an excellent resource over in diystompbox,  those guys really have added some nice mods to it too , Seeing as I have some old Mullard pnps I might try starting with that . So many of the greats used the Dallas , I need some of that mojo going on .
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Drawing Board / Re: Baxandall puzzle
« Last post by Tubetec on Today at 08:45:10 PM »
Thank you very much Abbey
Interesting results ,

The tube I'm using is a C3g , a German postal pentode,  its fairly high powered  , about 14 ma plate current and a few more on the screen ,low impedence too . Still just to see in the sim what the choke does on an ef86 is good ,  an extra 20 db margin due to the choke at HF ,thats a hell of a lot of extra punch. Ill be out most of the day tomorrow ,but I'll get a chance to run some signals in soon and report back my findings .I have a standalone sig gen ,maybe room eq wizard could display the frequency response for me. I see what you mean about the small difference in overall gain regardless of pentode ,Ul or Triode , it does make a larger difference to the overload margin ,could be handy for dialing in grit . I have a massive 75 hy 70ma  choke , dual coils ,operable in series or parrallel , might be interesting to try ,but its way to big for the chassis the Eq sits on at the moment .

Thank you all for your suggestions and questions , the more the merrier as they say .For anyone who wants more info on choke coupled amplifiers find it here ,   http://turneraudio.com.au/audiofilterchokes-page3.html
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Microphones / Re: thread at another forum
« Last post by dmp on Today at 08:27:51 PM »
There are two kinds of common posts that don't contribute much and rub people the wrong way... a lot of good examples of them.

1) instead of trying to answer the question explain why the question is wrong in a generally unhelpful way.
Example: how do I build a great bass DI? Answer: great bass is in the fingers, learn to play like jamerson.

2) implying you know the answer but not giving it.

Probably good to just hit cancel if your thinking of posting either of these kinds of things. Much better to do your best to be as helpful as possible.

I agree with what someone else said, it's most likely nobody saw the question vs the 'forum' trying not to be helpful. Lots of people around here go out of their way to help and answer questions.


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Brewery / Re: Kavana(ugh)
« Last post by hodad on Today at 08:18:52 PM »

I'm sure it worse 30 yrs ago to make an accusation about something like this - especially when the accused perp is a privileged boy from a wealthy family.

30+ years ago it was a whole different world.  Back when I was much younger I briefly dated a girl who had been kidnapped from in front of a punk club and raped.  The case actually went to trial and from what I gather the defense attacked her character viciously--she was at a punk club after all (early 80s), and they went after her for suspected drug use and promiscuity.  If I recall correctly, the rapists got off.  Because that's how things were back then. 
And it was absolutely psychologically devastating for her. 

Why would anyone invite that sort of grief on herself? 

Again IIRC, around this time Florida had a law that stated that if a woman was dressed provocatively in public a man could rape her with impunity because she was "asking for it." 

And date rape was barely even talked about at that time--and I could tell you about another friend who suffered deep psychological scars from that. 

So for a woman not to come forward at the time--not at all surprising.  And if you read about the DC prep school crowd of that era(see link in a previous post), people are extremely hesitant to say anything negative--especially on the record. 

I do not think Ms. Ford is "playing politics"--the cost for her is far too great to think it's good fun & games.  Certainly there's politics being played on both sides of the aisle, but that's not her fault. 
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Brewery / Re: Kavana(ugh)
« Last post by desol on Today at 07:48:37 PM »
PS: This makes me glad I am not a public official.  BTW don't watch old movies from the 30's half those guys would end up in #METOO jail. 

Actually, I don't think so....those guys had CLASS. These(republican) creeps just keep on reaping what they sow...while their supporters keep on making excuses for them.
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The Lab / Re: Tube mic PSU with no safety ground
« Last post by Matador on Today at 07:39:57 PM »
not only is there a debate,
but there are no numbers suggesting any danger.
one of the most successful mastering rooms in Hollywood had EVERY piece of gear on a 2 wire cord,
and the gear with 3 wires were modified internally to lift the green wire.
hope your panties don't get too bunched up.
What numbers would you like?  How about this: it takes only perhaps 10mA (or even less) to stop a heart.

That's the thing with unnecessary risks:  they aren't a problem right up until they are.  And modifying a grounded piece of gear to defeat safety grounds in the name of noise isolation:  well, here's the legal definition of 'recklessness' in California:

"[Recklessness is ] that a person knows that it is highly probable that his or her conduct will cause harm, and the person knowingly disregards this risk."

Seems apropos.

EDIT: here are some statistics. 

"Before the installation of Ground Fault Circuit Interrupters (GFCIs), which de-energize a circuit when they detect a ground fault, nearly 800 people died annually from household electrocutions. Now, less than 200 people die annually from household electrocutions."
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Silly question: how do I measure the current draw of the circuit?
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Brewery / Re: Bitcoin, crypto currency and block chain...
« Last post by JohnRoberts on Today at 07:06:21 PM »
I recently read an analogy of these fad investments as being treated like a video game... interesting analogy
Tilray now has a market cap worth more than major companies with profits.

I thought a lot of crypto technology, which is why I bought in a few years ago. I'm not as sold on the prospects of weed technology.
Cannabis extracts have real medical applications, and the post prohibition consumer market could be substantial, BUT the cost to manufacture will be dirt cheap so profits may be lower than projected after it becomes legal.

I made my quick pop and I am out (more lucky than smart)... early but happy.  8)

JR 

PS: I still wouldn't own bitcoin with all your money, but I like blockchain, but it is already spreading in fintech.
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Brewery / Re: Kavana(ugh)
« Last post by JohnRoberts on Today at 07:00:44 PM »
It's funny (and disappointing) that people question the timing of a accusation like this.  Of course playing politics makes the indefensible fair game nowadays.
:-\  It is hard to ignore the politics in this.
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It's not uncommon for revelations of abuse to come out WAY later. Look at all the men who have spoken out about abuse in the Catholic church from decades ago.

Actually people have spoken out about abuse within the catholic church for a long time only difference is that now they are actually being listened to and taken seriously.  :o  Even the Pope is apologizing these days and taking corrective action, instead of protecting miscreants, like in the past (no doubt thanks to the #metoo inspired culture shift.). 

That does not seem like what is happening in this case, of course opinions vary. 
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Even today, accusations like this in a college setting are turned back into interrogations of the victims. The 'metoo' movement is providing a tailwind for victims to speak out, perhaps like never before.
sexual accusations on college campuses has actually swung back from from "guilty until proven innocent" to slightly more rational (due process), but these are never easy to parse... so many hormones mixed with intoxicated young people can lead to regrets and second guessing situations that started out innocently. Bad behavior surely occurs and needs to be dealt with appropriately. Maybe replacing booze with pot will reduce sexual aggression on campus (IMO Maybe). ?   
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I'm sure it worse 30 yrs ago to make an accusation about something like this - especially when the accused perp is a privileged boy from a wealthy family.
unknown, the back story surrounding this case is not well fleshed out...
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The case of Brock Turner is especially disgusting - and only happened a couple years ago. 
according to google he was guilty, I don't know who he is/was/is.
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Also, for your daily dose of disgust in the conservative propaganda machine - Rush Limbaugh is spreading the lie that this same woman made this same accusation about Gorsuch.
I always wondered who listens to Limbaugh...?

The far right is as bad as the far left.   Ignore both and certainly don't paint everybody in the middle with the hyperbole from the fringes from both sides.  I try not to.  My complaint is mainstream media now seems more like the extreme left and right than any civil middle ground...

Maybe I am just a sensitive snowflake ?  :o (I'm melting. ::) )

JR
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The Lab / Re: Tube mic PSU with no safety ground
« Last post by gridcurrent on Today at 06:59:14 PM »
not only is there a debate,
but there are no numbers suggesting any danger.
one of the most successful mastering rooms in Hollywood had EVERY piece of gear on a 2 wire cord,
and the gear with 3 wires were modified internally to lift the green wire.
hope your panties don't get too bunched up.
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