GeorgeP Posted July 23, 2015 Report Share Posted July 23, 2015 Looks good. Though I assume the v2 and v3 are just for reference. Quote Link to comment Share on other sites More sharing options...
nopants Posted July 23, 2015 Report Share Posted July 23, 2015 sounds fine by me, those prices are nice to say the least. is someone officially putting together the cap buy? Quote Link to comment Share on other sites More sharing options...
sorenb Posted July 23, 2015 Report Share Posted July 23, 2015 is someone officially putting together the cap buy? ...there needs to be an interest in more than 92 as it is right now, before it is worth the effort I guess Quote Link to comment Share on other sites More sharing options...
insanity Posted July 23, 2015 Report Share Posted July 23, 2015 (edited) I think PCBnet is the right choice. The prices for the v5 and the fat psus are great. And most likely the board quality will be fine. Could you provide some insight in the board specs? Thank you so much for organizing this GB!!!! Edited July 23, 2015 by insanity Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted July 23, 2015 Report Share Posted July 23, 2015 all the boards I have ever had made were pcbnet, no issues yet. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted July 23, 2015 Author Report Share Posted July 23, 2015 (edited) I think PCBnet is the right choice. The prices for the v5 and the fat psus are great. And most likely the board quality will be fine. Could you provide some insight in the board specs? Thank you so much for organizing this GB!!!! Thanks for reminding me. All boards are 2mm thick and 2oz copper, HASL finish, green PCB with white silkscreen. V2 and V3 board cost is mostly for reference only ( I hope ). Edited July 23, 2015 by mwl168 Quote Link to comment Share on other sites More sharing options...
UFN Posted July 23, 2015 Report Share Posted July 23, 2015 Looks really good to me //UFN Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted July 23, 2015 Report Share Posted July 23, 2015 3 oz copper might be better for the power supply boards, harder to destroy lands that way. although with that much capacitance, copper is gonna fly no matter what if you do a hard short Quote Link to comment Share on other sites More sharing options...
Laowei Posted July 23, 2015 Report Share Posted July 23, 2015 I'm in for 8 Mundorf caps. Makes it an even 100.How many until we get a quantity break? Quote Link to comment Share on other sites More sharing options...
johnwmclean Posted July 23, 2015 Report Share Posted July 23, 2015 those prices are nice to say the least. Agree, great prices. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted July 24, 2015 Author Report Share Posted July 24, 2015 See my edit in the first post, I am limiting first time poster to maximun 4 set of amp boards. Sorry, should have thought of this earlier. Quote Link to comment Share on other sites More sharing options...
nopants Posted July 24, 2015 Report Share Posted July 24, 2015 that's a ton of boards isn't it haha, 8 pcbs? Quote Link to comment Share on other sites More sharing options...
b0bb Posted July 24, 2015 Report Share Posted July 24, 2015 As far as I remember NoPants asked for the Mundorf Caps option, and Kevin change the layout accordingly. The Mundorf features their 4pin technology. Kevin says he uses the 4pin configuration on the cap before regulation, but shorts it on the cap at the output (uses the cap as a regular cap). As for the advantage it probably boils down to personal taste and belief As for the spreadsheet, the GB is intended for those who wants 680uF/550V. I got quote on 470uF, 580uF(custom) and 680uF ....I guess the price difference isn't huge, so I guess most wants the 680uF? (have changed the spreadsheet to indicate this, and moved the Caps GB to separate sheet in the same workbook) ...but as KingOfSnake states: they are massive huge, and that goes for both the Kemet and Mundorf. Might be something to consider when planning for a chassie. I would like 8 of those. Updated the spreadsheet. Thanks Quote Link to comment Share on other sites More sharing options...
leonjo Posted July 24, 2015 Report Share Posted July 24, 2015 I'm in for 16 Mundorf caps. Updated the spreadsheet. thanks Quote Link to comment Share on other sites More sharing options...
kingofsnake Posted July 24, 2015 Report Share Posted July 24, 2015 Happy with those prices, those V5 pcb's are dirt cheap! nice one. Quote Link to comment Share on other sites More sharing options...
MLA Posted July 24, 2015 Report Share Posted July 24, 2015 Following your link, I can see that they reference a Mundorf datasheet where the 680uF is rated at 550V ...like it says on the Mundorf site ....so I guess Mundorf stick to 550V ,ok? Yes, I saw that data sheet, and noted that surge voltage is 550V (605 for the other sizes) even if the first column says 500V rated voltage, so technically it should be fine if maybe close. My question was more about Mundorf's latest data sheet (same as website "http://www.mundorf.com/en/?category=hifi&menu=caps_power&content=mlytic_hv_4pin, more recent version than partsconnexion sheet?), where VDC in the third column is 550V for all, but the first column order code implies that the 680uF might be rated 500V rather than 550. For any other component on that board I would not care, but these caps... Since some sellers seem to go by the order code, I though it worth checking out. Anyway, you're certainly right, it's much more likely that sellers have misread the order code than that Mundorf has screwed up their VDC rating table. I might send an e-mail to Mundorf just to make sure though. Quote Link to comment Share on other sites More sharing options...
MLA Posted July 24, 2015 Report Share Posted July 24, 2015 And here's input from Mundorf: "Thank you for your interest in our articles. The higher VDC shows the surge voltage, the lower the rated voltage. For more details about our MLYTIC capacitors please download our newest catalogue at this link: http://www.mundorf.com/PDF/Mundorf_Fidelity_Components_Catalog.pdf " "The actual available item are shown in the catalogue, NOT on the homepage. The last price changes were at June 6th, also there were changes in the delivery program." 4-pin power caps are at page 27. Unfortunately, the 680 uF seems no longer to be in the standard list, so no clarity there... On the other hand, if Mundorf then custom makes these for batch orders, their spec would be ground truth, so no problem left to solve. Sorry for making a fuzz about this. Quote Link to comment Share on other sites More sharing options...
sorenb Posted July 24, 2015 Report Share Posted July 24, 2015 Anyone have an explanation why the UL-standard seems is more demanding in comparison with MIL spec? https://edeskv2.belden.com/products/index.cfm?event=printPrev&pnum=83027&ut=English I have looked at this Belden wire ... rated at 1kV Mil Spec ...but only 300V UL standard .... it seems to 'fail' on the thickness of the insulation: the Belden wire has 0.015" UL requires minimum 0.020" for 600V and 0.022" for 1000V Quote Link to comment Share on other sites More sharing options...
Audiojunkie Posted July 25, 2015 Report Share Posted July 25, 2015 Anyone have an explanation why the UL-standard seems is more demanding in comparison with MIL spec? https://edeskv2.belden.com/products/index.cfm?event=printPrev&pnum=83027&ut=English I have looked at this Belden wire ... rated at 1kV Mil Spec ...but only 300V UL standard .... it seems to 'fail' on the thickness of the insulation: the Belden wire has 0.015" UL requires minimum 0.020" for 600V and 0.022" for 1000V MIL specs are dead nowadays. IPC is typically followed (even in for products going into the MIL industry). Quote Link to comment Share on other sites More sharing options...
AnakChan Posted July 25, 2015 Report Share Posted July 25, 2015 See my edit in the first post, I am limiting first time poster to maximun 4 set of amp boards. Sorry, should have thought of this earlier. Please let DonnyHifi's order go through though. I'm piggybacking on his order which is why it's 8 boards. Quote Link to comment Share on other sites More sharing options...
mwl168 Posted July 25, 2015 Author Report Share Posted July 25, 2015 No problem. DonnyHiFi's order was already in. Thanks for letting me know. Quote Link to comment Share on other sites More sharing options...
astrostar59 Posted July 25, 2015 Report Share Posted July 25, 2015 It is probably way to early but any idea of the parts cost (minus chassis)? Quote Link to comment Share on other sites More sharing options...
sorenb Posted July 25, 2015 Report Share Posted July 25, 2015 It is probably way to early but any idea of the parts cost (minus chassis)? about the same as a KGSShv Quote Link to comment Share on other sites More sharing options...
insanity Posted July 25, 2015 Report Share Posted July 25, 2015 I'd say its a bit more. Caps significantly more expensive. Quote Link to comment Share on other sites More sharing options...
nopants Posted July 26, 2015 Report Share Posted July 26, 2015 that's only if you use the smaller footprint power supply, there are several options which should be fine Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.