paul79 Posted February 16, 2016 Share Posted February 16, 2016 (edited) Thanks for the plug Craig.... If there was ever a project that turned out to be something special, it was this one! The Magnequest iron and Craigs tuning turned my VRD's into the most special sounding amps I have heard. My amps feature every other electrical upgrade Craig offers as well using Jupiter Copper coupling capacitors. We even upgraded all the connectors on the amps. Don't get me wrong.... The VRD's in original form are absolutely stunning. The sound difference is kind of tough to describe really, but I'll try... What was once a nice rendition of a piano became a very large resonating instrument. Little things going on in the background of the music become obvious little things, so a great increase in texture. I have never heard backup singers portrayed so transparently. Virtually no confusion in populated ensembles making classical music an absolute thrill ride. Image scale is almost supernatural depending on recording. For example, I have one album, Hugh Masekella "Hope" and it is as if I have superhero's playing in front of me! Put plainly, it is more real sounding. More intimate. This upgrade is not cheap, but like Craig said, my system sounds as good as the best systems I have heard for a fraction of the price. For context, I have heard personally, this system: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjXvYrb2fzKAhUFwiYKHZp1A34QFggeMAA&url=https%3A%2F%2Fsystems.audiogon.com%2Fsystems%2F5045&usg=AFQjCNEMfh9NSGzKF2nXSsS67QDw2Lh8fg&bvm=bv.114195076,d.eWE The amps in this system showed me what tubes are capable of with regards to imaging and resolution, and my new VRD's are a lighter lower powered sonic equal with even a touch more transparency, due to less tubes in the chain most likely. Craig really made something special here guys. Here is a nice blog about my system: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&cad=rja&uact=8&ved=0ahUKEwjf6Zav2PzKAhVB7SYKHTX7B24QFggtMAU&url=http%3A%2F%2Fmagnequest.blogspot.com%2F&usg=AFQjCNG_aY9rzPe3EYVI-_2zCpVAl-l9fQ The speakers then were the Joseph Audio Perspective's. They are now replaced with the Joseph Audio Pearl's. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwiErLHj2PzKAhVDSyYKHfA8Ci0QFggcMAA&url=http%3A%2F%2Fwww.josephaudio.com%2Fpearl3%2F&usg=AFQjCNFtNRwBDNeadbg8NK_75TJKoSHFiQ&bvm=bv.114195076,d.eWE Oh, yes... The Sig. VRD's drive them with absolutely NO problem, all by their lonesomes.... Edited February 16, 2016 by paul79 Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 16, 2016 Share Posted February 16, 2016 Excuse me Mr Cranky pants. There seem to be plenty of knowledgeable tube amp designers willing to help answer questions. If you have nothing positive to add to the conversation why participate? 1 Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 16, 2016 Share Posted February 16, 2016 Why are you calling me a sloth and xxxjpmxx? Inside joke? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 16, 2016 Share Posted February 16, 2016 Why are you calling me a sloth and xxxjpmxx? Inside joke? You join right after xxxjpmxxx is banned. Your IP's are close to each others. You post in the same forums as he did. You write in the same style. You have the same technical knowledge Most people do not believe in coincidence. 2 Quote Link to comment Share on other sites More sharing options...
Administrators Chad Posted February 16, 2016 Administrators Share Posted February 16, 2016 Similarities aside, I see nothing technically wrong with Cindy's posts in this thread. If you think it's baiting or whatever, then you should just ignore it. Otherwise, I read it as someone actually asking a few questions, and others attacking "Cindy" for doing so. Please don't do that, regardless of assumptions you make. Keep things within context here. 2 Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 16, 2016 Share Posted February 16, 2016 Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 16, 2016 Share Posted February 16, 2016 Sorry to disappoint, this is a case of mistaken identity. I am just used to some men not accepting me in the field. I have found xxjpmxx in some recent threads and I am currently doing some catching up. -Cindy Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 16, 2016 Share Posted February 16, 2016 I'm again on vacation from this place..... good bye all... Quote Link to comment Share on other sites More sharing options...
paul79 Posted February 16, 2016 Share Posted February 16, 2016 Don't leave Craig... This place is better with you! Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 16, 2016 Share Posted February 16, 2016 Hey life is too short to have to combat trolls run amok... Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 16, 2016 Share Posted February 16, 2016 Hey life is too short to have to combat trolls run amok... The best defense against a troll is not to feed them (respond). 2 Quote Link to comment Share on other sites More sharing options...
paul79 Posted February 16, 2016 Share Posted February 16, 2016 Agree with above statement. Just ignore, and they will go away.. Too many good people here to let one ruin you. 1 Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 18, 2016 Share Posted February 18, 2016 Since nobody helped me to find the answer I dug through some text books and I believe I found what I was looking for. If anyone else is interested here is what I learned. Let's go with the 50% full power that we require for 20kHz. For the 40 watt amp we will use the figure 17v peak for 17.7 watts RMS, close enough to half for me. So for this amplifier we are looking for a slew rate of 2.13 V/us I assume the scope is set for 10us/div in the last photo showing 20kHz squarewaves in post #2. I also assume the vert divisions are 5V/div. So we want to see no more than a 1/10 a horizontal division (1us) in at least 42% a vertical division (2.13v). We can also deduce the -3db rolloff by looking at the rise time from 10% to 90% of the pulse. I count about 3us which would put the -3db point at around 116kHz. This would be a lot easier if the "experts" here would share there information and explain what we are looking at instead of putting down my lack of knowledge in a field I am not an expert in. I am sure all of us could learn form it. -Cindy Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 18, 2016 Share Posted February 18, 2016 Yyyyyyyaaaaaawwwwwnnnnnn Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 18, 2016 Share Posted February 18, 2016 Consider this a formal complaint about NOSValves avatar. I find it and him extremely offensive. Forum rules states no profanity. Your remarks are a good indication of your intellect. -Cindy Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 18, 2016 Share Posted February 18, 2016 Consider this a formal complaint about NOSValves avatar. I find it and him extremely offensive. Forum rules states no profanity. It's kind of hard to fault him for using the same word for an avatar that PWK used to wear on a pin. If you have an issue with a post, use the report button at the bottom of the post in question. The moderators will deal with it appropriately. 5 Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 18, 2016 Share Posted February 18, 2016 Under "Terms of Use / Rules" "You agree, through your use of this service, that you will not use this bulletin board to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, racist, threatening, invasive of a person's privacy, or otherwise violative of any law." Post #23 NOSValves called me a "smartass" and was not issued anywarning points. He has also called others names like "delusional" in other threads. I on the other hand get a warning point for saying "Your remarks are a good indication of your intellect". The moderators are clearly discriminating against me for whatever reason and I don't appreciate it. -Cindy Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 18, 2016 Share Posted February 18, 2016 was not issued anywarning points I wasn't aware members could see other members points. My recommendation is to use the report button as suggested above if you have issues with a post. Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 18, 2016 Share Posted February 18, 2016 (edited) I see your point, maybe he was given a warning and maybe he wasn't. I did issue a report, thanks. -Cindy Edited February 18, 2016 by CindyJarvis Quote Link to comment Share on other sites More sharing options...
LarryC Posted February 18, 2016 Share Posted February 18, 2016 Time approaching to ban Cindy The Troll? 1 Quote Link to comment Share on other sites More sharing options...
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