December 16, 201114 yr comment_486555 I see the jumper bypasses the pieces that can be omitted. I am wondering if there are any problems if said pieces are installed, some or all. (I already installed D12 and D13 although no big deal I can remove them.Just curious though. Just cut them out flash on both sides of the board. Report
December 16, 201114 yr comment_486588 I am looking at the schematics of the psu from lil knight's bom (dont have my boards yet)- the zener on top of the 15k beside beside the zener 1n4007 has not been marked? Can someone enlighten me which value it is please? Report
December 16, 201114 yr comment_486594 It too is a 1N4007. Neither of those diodes are zeners, they are just straight rectifier diodes. What BOM / schematic are you looking at? Mine show the values for both. Report
December 16, 201114 yr comment_486601 Ok tks. I must looking at an older schematic. A little confusing for me as there have been changes along the way. I will wait for my actual boards to arrive. Report
December 16, 201114 yr Author comment_486608 latest schematics http://gilmore.chem.northwestern.edu/kgsshvproduction.pdf http://gilmore.chem.northwestern.edu/kgsshvps8e.pdf Report
December 16, 201114 yr comment_486616 Thank you Dr. Gilmore. On a separate note could you advise whether it is ok to mount the onboard version on the side of the casing to fit everything into one box, assuming that the box is tall enough to accept the boards, as I understand that off board version is more challenging to build due to the mounting of the side mount heatsinks? Report
December 16, 201114 yr Author comment_486617 There are 2 rows of heatsinks, so no, you can't do it that way. Report
December 16, 201114 yr comment_486618 I think he means using the on board heatsinks but simply mounting the board itself vertically on the side rather than horizontally on the bottom of the case. In which case that should be fine, but your case is going to have to be something like 7+ inches tall. The heatsinks won't work as effectively either as they are designed to be vertical. Also the heat from the bottom row of sinks will rise to the top row and heat them up. Edited December 16, 201114 yr by cobra_kai Report
December 16, 201114 yr Author comment_486620 That reminds me of a 300 watt shunt regulator power supply i built for a dynahi a while ago. Way to big. nothing prevents you from using the other boards, and then making angle brackets like the T2, thats way easier than precision drilling and tapping holes on the heatsink. Report
December 20, 201114 yr comment_487457 I got an update from Mouser and the 2SC4686A's should be in stock on Feb 13. Report
December 21, 201114 yr comment_487575 Lil knight, please check your inbox, sent you a pm regarding the missing boards from my group buy order. Report
January 3, 201214 yr comment_489905 I was looking at the way the amplifier boards were mounted by Greg and Andy. It seems to me Andy's way may be easier to service if any troubleshooting or desoldering is needed. Report
January 6, 201214 yr comment_490493 Another KGSSHV off-board up and running thanks to Greg (Horio). I'm really impressed by the sound so far. The 009s sound sooo crisp. The sound reminds me a bit of a baby version of Voltron's T2. Hopefully I'll get a chance to bring it up to Kerry's sometime in the future for a comparison with the KGBH. Edit: Thanks again to everyone who put the time in to making the KGSSHV happen. Edited January 6, 201214 yr by TMoney Report
January 6, 201214 yr comment_490546 Wicked good. I bet your engrossed in your 009's. Outstanding casework on both builds. Report
January 7, 201214 yr comment_490689 I quite like your design aesthetic TMoney. It reminds me of Nugget Audio's simplistically beautiful designs. Report
January 8, 201214 yr comment_490787 Nice! We'll definitely have to schedule some time to do some comparisons Report
January 8, 201214 yr comment_490825 How do I attain the PCB? I think at this point, you're going to have to see if anyone has a spare set they would sell you. Report
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