November 15, 200718 yr comment_65184 Don't know, but I would be interested myself. And what happened to bamaslama boards? Report
November 15, 200718 yr comment_65283 I'm waiting for linear systems to get their butt in gear and actually deliver on lsk109's. Then the floodgates open. The lsk389 is so much better than either the 2sk389 or the individual versions used in the B52 that it is worth waiting to do it right. I have a dynafet prototype with 2sk389/2sj109 and it is kickass. No matching of parts will be necessary, just stuff the board and it works. Report
November 15, 200718 yr comment_65328 Will I be able to fry an egg on the heatsinks? Nope. If you want to do that, find a raptor with the original power supply. Cooks eggs just fine. Report
November 15, 200718 yr comment_65495 Nope. If you want to do that, find a raptor with the original power supply. Cooks eggs just fine. It is also great for refinishing furniture, it removes varnish and paint with ease. No need to visit Home Depot anymore. Report
November 15, 200718 yr comment_65501 Kevin, Will the DynaFet work properly at a gain or 4 or 5 for 60ohm headphones, with just two output devices per channel vs. the 4 per channel, shown on the latest pcbs over on headwize? I know your original sketch showed two output devices per channel. Pete Report
November 15, 200718 yr comment_65579 Nope. If you want to do that, find a raptor with the original power supply. Cooks eggs just fine. Sweet, there should be more convergence headphone products. George Foreman Headphone Amp Grill! Report
November 15, 200718 yr comment_65587 Isn't this a new project unrelated to the Dynahi/might? It's exactly the same, but completely different. Report
November 15, 200718 yr comment_65759 I've been tinkering with tubes more lately, but I'll definitely build a dynafet when they're ready to go. Report
November 15, 200718 yr Author comment_65765 It's exactly the same, but completely different. It's actually a close cousin to the Dynasaur Report
November 15, 200718 yr comment_65782 Kevin, Will the DynaFet work properly at a gain or 4 or 5 for 60ohm headphones, with just two output devices per channel vs. the 4 per channel, shown on the latest pcbs over on headwize? Yes it will, without any additional compensation, i have one running at a gain of 4 now. You can certainly build it with 2 devices per channel. But i like the sound of the renasys fets over the international rectifier versions, and they are not as strong, so you really should do 4 of them. There are 4 different versions of the boards, and when i'm sure of the pinout of the lsj109 there will be 4 new versions. Build what ever turns your crank. Then again compaired to the toy output transistors on the (well you know) you could probably just build it with one set of output transistors. But where is the fun in that. Need to be able to drive k1000's to painfully loud levels. Report
November 16, 200718 yr comment_66468 Yes it will, without any additional compensation, i have one running at a gain of 4 now. You can certainly build it with 2 devices per channel. But i like the sound of the renasys fets over the international rectifier versions, and they are not as strong, so you really should do 4 of them. There are 4 different versions of the boards, and when i'm sure of the pinout of the lsj109 there will be 4 new versions. Build what ever turns your crank. Then again compaired to the toy output transistors on the (well you know) you could probably just build it with one set of output transistors. But where is the fun in that. Need to be able to drive k1000's to painfully loud levels. Kevin, I will never run K1000s, so I am looking to reduce the energy footprint of a blanced version, without a penalty in sonic quality. Which fets are the renasys? the "well you know"?? Cheers Pete Report
November 17, 200718 yr comment_66641 Renesas is the (not so) new owner of what was once the semiconductor arm of Hitachi. The Renesas parts Kevin refers to are the 2SK213/2SJ76 - 2SK216/2SJ79. Report
November 17, 200718 yr comment_66644 the "well you know" are those toy 400mw transistors one particular famous manufacturer and good friend of mine use... Report
November 17, 200718 yr comment_66702 Renesas is the (not so) new owner of what was once the semiconductor arm of Hitachi. The Renesas parts Kevin refers to are the 2SK213/2SJ76 - 2SK216/2SJ79. amb, you should post more!! Report
November 17, 200718 yr comment_66719 amb, you should post more!! I would love to, but have trouble keeping up with too many forums. Aside from headwize which remains my mainstay, head-fi and here, I also peruse several other forums periodically. Report
November 17, 200718 yr comment_66722 I would love to, but have trouble keeping up with too many forums. Aside from headwize which remains my mainstay, head-fi and here, I also peruse several other forums periodically. Makes sense. Report
December 16, 200817 yr comment_185148 Kevin any updates? And is the finalized name of the amp DynaGBF? Report
December 17, 200817 yr comment_185269 still waiting for linear systems (or anyone else) to get off their asses and start selling dual matched complimentary front end fets. After that, lots of new stuff. Of course the world really does change in the middle of february. Report
December 17, 200817 yr comment_185276 still waiting for linear systems (or anyone else) to get off their asses and start selling dual matched complimentary front end fets. After that, lots of new stuff. Of course the world really does change in the middle of february. Middle of February? Report
December 17, 200817 yr comment_185277 Middle of February? My birthday? Or the end of analog TV? Report
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