DefQon Posted September 13, 2014 Report Posted September 13, 2014 Nice stuff John, you love building KGSSHV's.
spritzer Posted September 13, 2014 Report Posted September 13, 2014 Looking good!!! That SumR looks awfully small though...
johnwmclean Posted September 13, 2014 Report Posted September 13, 2014 Thanks guys!Looking good!!! That SumR looks awfully small though... That is a really odd photo, it does make the Sumr look tiny, it's the bog standard RC0100 050 12, 110 x 44mm.
johnwmclean Posted September 13, 2014 Report Posted September 13, 2014 and done... I’m looking forward to listening session with BHSE for a comparison. When I get time I’ll take some shots with the 5D, only crappy iphone pics for now...
spritzer Posted September 13, 2014 Report Posted September 13, 2014 I like the silver look. You could contact Modushop as they will sell you silver side panels.
johnwmclean Posted September 13, 2014 Report Posted September 13, 2014 I like the silver look. You could contact Modushop as they will sell you silver side panels. Thats cool to know! I may change it at some stage. I initially draw up side panels for Cam-Expert to mill in silver, but they don’t have multi axis capability. The only parts I purchased from modushop was the black side panels and the black knob.
Aive Posted September 14, 2014 Report Posted September 14, 2014 Hey John, just noticed you're in Sydney! Very slick build - just wondering, where'd you source the rest of the panels (front, bottom, top)? I'm in Brissie.
johnwmclean Posted September 15, 2014 Report Posted September 15, 2014 Hey John, just noticed you're in Sydney! Very slick build - just wondering, where'd you source the rest of the panels (front, bottom, top)? I'm in Brissie. Nothing local I'm afraid, was all done in the States by Cam Expert. Reasonable prices, good communication and they'll quote overnight.
UFN Posted September 19, 2014 Report Posted September 19, 2014 I am struggling a bit to find a 787k high-voltage resistor for the bias-supply on my 450V PSU. The only thing I can find is Mouser p/n 594-HVR2500007873FR5. The voltage rating is fine (1.6 kV) but it is only rated 1/4W - is that enough? //UFN
spritzer Posted September 29, 2014 Report Posted September 29, 2014 Some PCB's arrived today which prompted me to take this photo, how far we have come in 4 years: On the left the brand new mini KGSSHVk stereo board and on the right the first version KGSSHV mono board. Naturally to make the stereo board we had to make compromises so only the output stage is on full size sinks while the gain stage active devices and the CCS sand share two sinks for both phases. That means I had to pick a CCS type and IXYS it was just to make it easier to build. Only K170 input fets are supported but this one does have servo which the old design didn't have.
UFN Posted September 29, 2014 Report Posted September 29, 2014 (edited) Still working on my "normal" KGSSHV, but that looks very cool! //UFN EDIT: Left out the obvious part: Want one! Edited September 29, 2014 by UFN
PretentiousFood Posted September 30, 2014 Report Posted September 30, 2014 Oopsie, guess I'm a bit late then eh. Just started stuffing mine. New boards look sweet!
alwayshungry Posted October 2, 2014 Report Posted October 2, 2014 I'm getting around to building my 0.6 KGSSHV boards. I've already gone through the off-board amps to check all the parts against one of the BOMs out there. I'm working on going through the power supply (mine say Production Rev 0.6) but there doesn't seem to be a good BOM/schematic. Can anyone pass one along? Also my boards have STTH1512 screened on them for the rectifier voltage diodes but I notice on newer versions of the board are using the STTH1210D. Is that the known substitute? Thanks in advance.
DefQon Posted October 2, 2014 Report Posted October 2, 2014 Thought the RN55/60D's no good for the amp boards due to inductive coating and limiting wall with the rated working voltage?
spritzer Posted October 2, 2014 Report Posted October 2, 2014 No problem using the RN60D, I've used them in all my amps. The diodes need to be isolated and the right voltage but other than that just use what ever you can find.
mypasswordis Posted October 3, 2014 Report Posted October 3, 2014 (edited) Oopsie, guess I'm a bit late then eh. Just started stuffing mine. New boards look sweet! Just curious, where did you get your 2sa1486s? Edited October 3, 2014 by mypasswordis
PretentiousFood Posted October 3, 2014 Report Posted October 3, 2014 I got all the sands from Satodenki. They only seem to take bank transfer from within Japan, unfortunately, so I had a friend help me out there.
mypasswordis Posted October 3, 2014 Report Posted October 3, 2014 Thanks! I might hit Justin up for a few if he still has some for sale, that seems like an easier option. Need to buy some Stax jacks from him anyway.
DefQon Posted October 4, 2014 Report Posted October 4, 2014 Sato has some 1968's as well. Something I currently need.
nattonrice Posted October 6, 2014 Report Posted October 6, 2014 I’m looking forward to listening session with BHSE for a comparison. So am I, we're due to catch up... Awesome build btw!
wink Posted October 6, 2014 Report Posted October 6, 2014 Almost as good as mine...... well, to me anyway. John designed my case too.
johnwmclean Posted October 9, 2014 Report Posted October 9, 2014 So am I, we're due to catch up... Awesome build btw! Way over due, miss you Tom! I'll organise something sooner rather than later. 1
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