ujamerstand Posted January 9, 2012 Report Posted January 9, 2012 (edited) You guys just gave me some good reasons not to post any FPE files. Edited January 9, 2012 by ujamerstand
Hennyo Posted January 9, 2012 Report Posted January 9, 2012 (edited) You find offers to the solutions of the problems you asked openly offensive... Stop trolling.. I offered you a service which you were looking for.. That is all.. I went out of my way to communicate with you as you seemed like a guy looking for a solution. I even offered my phone number in good faith.. I have work study at the University.. I spent half of my time trying to help you yesterday. And you claimed you wanted someone to build it. There's nothing more I can do. You're welcome to post whatever you want.. If you post it up people will see what an absolute prig you were regarding the slew of the information I gave you. That won't make it valid or even intelligent. Good luck with your build. I hope you can pursue your build as desired. I don't doubt you can if you just take the time. Edited January 9, 2012 by Hennyo
livewire Posted January 9, 2012 Report Posted January 9, 2012 You guys just gave me some good reasons not to post any FPE files.
deepak Posted January 9, 2012 Report Posted January 9, 2012 I don't plan to remove/move any posts, but I'd appreciate if we could stay on topic as someone that is in the process of building one, it's much easier not wading through a bunch of junk posts
swt61 Posted January 9, 2012 Report Posted January 9, 2012 (edited) Nevermind Edited January 9, 2012 by swt61
luvdunhill Posted January 9, 2012 Report Posted January 9, 2012 Oh come on Steve, we wanted to see your latest build! Wait, I have pics:
Craig Sawyers Posted January 9, 2012 Report Posted January 9, 2012 Geeks trying to be tough, it would have to be the funniest thing I have ever seen. Easy to use harsh words when your talking to a computer screen. You wanna check my LinkedIn profile, before you go any further?
guzziguy Posted January 10, 2012 Report Posted January 10, 2012 You forget to mention your SAS experience on your LinkedIn profile.
Craig Sawyers Posted January 10, 2012 Report Posted January 10, 2012 You forget to mention your SAS experience on your LinkedIn profile. Massively off-topic, so apologies to all. But oddly enough my cousin Douglas Newton spent his life in the SAS (actually in special forces Royal Marine Commando - the UK equivalent of a Navy SEAL). Now in his early 60's with support boots (knackered ankles through sprinting everywhere in full combat gear) and two hearing aids ("from spending too long next to things that went bang"). Quite a character.
kevin gilmore Posted January 10, 2012 Author Report Posted January 10, 2012 OK, so blubliss has proven that a person with absolutely no experience can build a T2 as his first electronic project ever, and get it to work without killing himself. He did however have the patience (cough cough) and read enough so that he knew what he needed to do. He also had help from a friend, and another friend in high places. The kgsshv is WAY easier to do. I had a chance to look at my notebook, because when i built my 2nd kgsshv i wrote down how long i spent on various things. I stuffed both amp boards at the same time and the total time to stuff and solder the 2 boards was 6 hours. The power supply board took an additional 3 hours. I'm sure that justin can do it in half that amount of time, but most people are likely to spend twice as much time as i did. Checking all parts before you stuff and solder them in is pretty much required unless you want to spend more time fixing it than you did building it. I've seen mislabeled resistors before, and dead transistors out of the box. The $40 transistor tester is a great idea for this, and a decent 4.5 digit DVM is also necessary. Still, there are lots of ways you can get hurt if you don't pay attention. The chassis work and wiring also takes a bit of time especially if you don't have the right tools.
Victor Chew Posted January 10, 2012 Report Posted January 10, 2012 I will certainly be doing what you have just advised Dr Gilmore. However, on top of stuffing the boards, I am a little worried about wiring it up for testing and actual wiring as one wrong connection can mean a whole load of charred parts and not to mention the spraks flying around. Is it possible to have a wiring diagram for double checking purposes to mininise wiring mistakes? Thank you to the experts in advance.
swt61 Posted January 10, 2012 Report Posted January 10, 2012 (edited) If Justin stuffs a board the same way he stuffs an In & Out burger, it surely must be a sight to behold. Oh, and Marc, I'm not even sure how to reply to that, except it looks like it may chafe. Edited January 10, 2012 by swt61
eggil Posted January 11, 2012 Report Posted January 11, 2012 (edited) x2 Victor Chew's request. I have been taking my time researching, buying parts, and stuffing the boards. Not to mention extremely helpful tips and posts from Horio, Blubliss, JohnMcClean and LilKnight, amongst others. Edited January 11, 2012 by eggil
Horio Posted January 11, 2012 Report Posted January 11, 2012 (edited) Taking your time is really the best piece of advice imo. Part of the fun of DIY, is trying to learn a few things and not just throw something together as quickly as possible. Plus taking some extra time probably leads to fewer mistakes along the way. I wish I would have looked over my front panel one more time, so now I have to live with an "electostatic amplifier". Edited January 11, 2012 by Horio
DouglasQuaid Posted January 11, 2012 Report Posted January 11, 2012 However, on top of stuffing the boards, I am a little worried about wiring it up for testing and actual wiring as one wrong connection can mean a whole load of charred parts and not to mention the spraks flying around. Is it possible to have a wiring diagram for double checking purposes to mininise wiring mistakes? This phrase has been repeated so often in this thread, it is practically cliche... RESEARCH! If you don't know how to connect the primaries/secondaries of a transformer to match your country's power grid, you probably shouldn't be messing with this project. There are dozens of articles on wiring up power supplies and amplifiers (Our old HF/HW buddy Tangent has some pretty good articles that explains it in a way a first-timer would understand). An incredibly quick google search will show you how to connect an XLR or RCA to an amplifier (with photo diagrams). This isn't another one of those fool-proof projects you'll find on the other forum where every single thing is laid out for you. KG released the schematics and the pcb files. Someone even went through the trouble of making a BOM. You missed out on the board group-buy, but perhaps there'll be another one when KG releases the new pcb revision. You're pretty much on your own from there. 1
livewire Posted January 11, 2012 Report Posted January 11, 2012 ^^^THIS. @VC - If the KGSSHV were a kit, sold with uniform parts, your request would be easy to accomodate. But it's not. Many of us will use different interconnects to suit their personal taste, as well as attenuators, switches and transformers. The connections may differ slightly "from the norm". Color-coding, voltage taps and other things may vary. Everything you seek is right there in the schematics, drawings and thread texts, A basic understanding of the concepts mentioned above by DQ is necessary. You should also know how to identify and orient components on the pc boards. Please be aware that the high voltages flowing through these circuits is lethal. It can stop your heart in an instant. A good knowledge of working with HV is necessary. I'll say it again, research the concepts involved, read the KGSSHV threads here and the KGSS thread at HeadWize. Take notes. Then ask questions that are more specific to the facet of this topic that your research does not answer. Nobody here is going to write you a book, but I for one am glad to help if the question is focused. As far as sparks flying, it happened to me twice during this build. Everything was assembled and wired correctly. I did take precautions so as not to be electrocuted, but I was careless in the testing phase. The first time it happened, I hooked up my voltmeter wrong to the power supply output. I knew how to do it, but didnt double check. The probes were wired as an ammeter from some other previous testing. When I powered it on - BOOM! Instant short circuit. Result, many transistors and resistors were instantly fried. The second time it happened was when I slipped with the test probe, bridging and shorting out two of the traces on the PSU pc board. This time, I only heard a faint snap and saw a small spark. The damage was done.....again! (FYI, clip-on hook type miniprobes are safer than the needle point ones I used and subsequently slipped with.) After much troubleshooting and repeat parts orders, what should have taken a month to complete, took three. I'm just glad my KGSSHV works now. It was a difficult and rewarding journey. Building the KGSSHV is not that difficult to complete, just know the basics, research, have patience and double check your every move.
Hennyo Posted January 20, 2012 Report Posted January 20, 2012 (edited) Hi HD man. There's a board run going on right now.. If you're looking for a board set, try pm'ing him. Edit: I think HDman's post was deleted. I think Lil' Knight is doing a board run right now. I forget if the other projects are avaialable. Edited January 20, 2012 by Hennyo
eslover Posted January 20, 2012 Report Posted January 20, 2012 The chassis work and wiring also takes a bit of time especially if you don't have the right tools. Hi Kevin: I am scratching my head for the casework. On a much earlier post in this thread, you recommended to ground of boards to the case. But what if the case is not made of a conductive material? What do I need to ground exactly. I never worried in the past, but nothing I ever built run with more than 35V rails. In addition, I originally intended to use wood for the case like in the previous amps I built (no HV) as it is much easier and pleasant for me to build. Reading stories of sparks flying by a few builder, I am having second thoughts. Would you advise against wood? Or a plastic case?
kevin gilmore Posted January 20, 2012 Author Report Posted January 20, 2012 For safety on a metal box, the chassis should be connected to earth ground thru the 3 pin IEC outlet. If its an all wood box, then this does not apply. Just make sure all the grounds get connected. input connectors, power supply and amplifier boards.
eslover Posted January 20, 2012 Report Posted January 20, 2012 Thanks for the clarification Kevin, that's helpful. As you did not seem too concerned, I'll go for a wood case.
Beefy Posted January 20, 2012 Report Posted January 20, 2012 Just make sure all the grounds get connected. input connectors, power supply and amplifier boards. Quick clarification..... in this instance, would you recommend a ground loop breaker between the chassis safety ground and star ground?
spritzer Posted January 20, 2012 Report Posted January 20, 2012 Wood or plastic are both insulators so nothing wrong with using either as chassis material. I tend to use metal due to the shielding properties though. I never use ground loop breakers on any of my gear. Made some progress on one of my HV's. Here is proof that one will fit in a 2U 400mm chassis...
ujamerstand Posted January 20, 2012 Report Posted January 20, 2012 Aw no you didn't! What's the size of the sinks you're using? are you planning on using standoffs at the bottom?
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