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A public apology to Andre Jute.
wrote in message oups.com... http://members.lycos.co.uk/fiultra/K...0T68MZ417A.jpg Right-click on the image. Funny thing. The "properties" show that this image was both created and modified on February 18, 2006. No images (so far) or links to images with a date prior to the 18th of this month. Just words. Mr. McCoy does pride himself on his words.... Peter Wieck Wyncote, PA Don't the "properties", derived as a right click off of any web based photo, show the creation and mod dates to be today's date ? Arfa |
A public apology to Andre Jute.
The "MZamp.jpg" picture has been on my web pages since January 1, 2004.
Please kindly show how one gets from your home page to the link noted. Does look a lot like he lies, and you swear to it. Peter Wieck Wyncote, PA |
The Pinkerton Pathology, part 1: beyond anti-social tendency into disease
Whoops.... I forgot to note that your soldering also appeared to be
quite elegant as I remember, with no lethal voltages exposed above the chassis. Not the mare's nest of miscellaneous higglety-pigglety that Mr. McCoy displays in his Magnum Opus. Just an observation. Peter Wieck Wyncote, PA |
Jute lies like a cheap rug
Stewart Pinkerton wrote: Jute, .............you are such a proven pathological liar that if you posted that grass is green, we'd have to look out of the window to check. And he'd reserve his right to change his position to the " grass is blue " too without as much as a blush. Graham |
The Pinkerton Pathology, part 1: beyond anti-social tendency into disease
In article .com,
" wrote: John: As I remember, you isolated the input and the output from the mains power via appropriate transformers. Why would I think this is dangerous? Well for one it might be dangerous if the transformers aren't as you say "appropriate". That is my one misgiving, that the input transformer really isn't designed for this job. But this was a junk box effort, which was good enough satisfy me and to prove that "Danger Dave" didn't know what he was talking about when he made his original statement that this sort of amplifier couldn't be built without serious hum. The hum was better than 80 dB below 1 Watt out, which is better than a good number of commercial tube amplifiers with power transformers. But that was not where I was going in my previous post, what I was wondering about was if you were around "rec.audio.tubes" at the time of the "Power Amplifier Without Power Transformer" flame wars? I hadn't checked Google before posting and now that I have checked I am not sure what to make of the results. It appears that you made a number of posts to "rec.audio.tubes" in late 1997 and early 1998, but none after March 1998, so it is not clear if you weren't following the group at the time, or if you were reading but not posting to the group? Regards, John Byrns Surf my web pages at, http://users.rcn.com/jbyrns/ |
The Pinkerton Pathology, part 1: beyond anti-social tendency into disease
In article .com,
" wrote: Whoops.... I forgot to note that your soldering also appeared to be quite elegant as I remember, with no lethal voltages exposed above the chassis. Not the mare's nest of miscellaneous higglety-pigglety that Mr. McCoy displays in his Magnum Opus. Just an observation. I wouldn't call the wiring a "mare's nest", and in any case we may be jumping to invalid conclusions about "lethal voltages exposed above the chassis." If the amplifier in question was intended purely as a breadboard to be used to develop the circuits, then it is perfectly normal and reasonable for there to be "lethal voltages exposed above the chassis." But I suspect that the real situation here is somewhat different. It looks to me like Andre has built the amplifier circuits on a metal panel which ultimately forms one side, or the top, of an enclosure which isolates the lethal voltages from contact with stray human or animal body parts. I am only guessing at this, perhaps Andre could comment on my speculation. Regards, John Byrns Surf my web pages at, http://users.rcn.com/jbyrns/ |
A public apology to Andre Jute.
In article .com,
" wrote: The "MZamp.jpg" picture has been on my web pages since January 1, 2004. Please kindly show how one gets from your home page to the link noted. Does look a lot like he lies, and you swear to it. I am not sure that I understand your question, there is no link to Andre's pictures from my home page, you must know they are there and enter the direct URL that Andre provided. If it would somehow help I could temporarily modify the HTML for my home page to include references to Andre's pictures, although it is not obvious to me how that would help given that the URL's have been posted. I haven't done it, but the issue might be somewhat settled by checking the Google archives of "rec.audio.tubes" around January 1, 2004, as I suspect there are references to these pictures and the URL's on my web pages where they are located. Regards, John Byrns Surf my web pages at, http://users.rcn.com/jbyrns/ |
A public apology to Andre Jute.
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The Pinkerton Pathology, part 1: beyond anti-social tendency into disease
Reading, but not posting.
Peter Wieck Wyncote, PA |
The Pinkerton Pathology, part 1: beyond anti-social tendency into disease
But this was a junk box effort, which
was good enough satisfy me and to prove that "Danger Dave" didn't know what he was talking about when he made his original statement that this sort of amplifier couldn't be built without serious hum. The hum was better than 80 dB below 1 Watt out, which is better than a good number of commercial tube amplifiers with power transformers. Well, Dayuumm... One of the things being a 'repair person' teaches is that hum-free (very low hum) circuits without mains transformers and without massive electronics are pretty common, pretty simple and can be pretty good performers. And the (HFV)L6 series of tubes are particularly suited to that use. Add such niceties as not using the chassis as the common rail, input and output transformers and they are about as safe as anything else out there of a similar general class, certainly more-so than any AA5. As to the input transformer being 'designed for the job', that is a moving target. Imagine the most catastrophic cascade-failure on the system that would _NOT_ blow the fuse, how much voltage & current that would deliver to the secondary side of that transformer, and whether it could take it or not without shorting to the case or to the primary side. I have not examined your schematic in detail (nor do I know the specifications to the transformers)... I seem to remember a hand-drawn sketch. In any case, you are not intending to put this thing into production, nor are you (apparently) holding it up as an avatar of all-things-amplifier. Keep in mind, John, that no one here is 'picking' on Mr. McCoy. Were he to confine himself to 'being useful' as he seems to believe is the purpose of other people's lives (at least), he would be mostly welcome and mostly treated with the respect he deserves. However, he insists in creating his useless little alliterative fantasies, mostly out of whole cloth, and is then surprised when he is not so welcome and also treated with exactly the respect he deserves. With due respect, his magnum-opus looks like a cook-book recipe assembled with very limited skills under marginal conditions and no real understanding of the expected results. For all his pontificating, one would expect Mr. McCoy to be at a minimum a better mechanic. See, there is something to be said for 'craft'. It makes understanding what one has done infinitely easier, it sure does help prevent mistakes during the process, and it helps anyone confronted with the work in the future. It falls back to the carpenter's motto: Measure twice, cut once. There may never be quite enough time to do it right... until one is faced with the need to do it over. Platitudes, perhaps. But they got that way for clear reasons. Peter Wieck Wyncote, PA |
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