February 15, 201511 yr comment_672591 Thanks Birgir. I am planning to start a mini KGSSHV boards GB. I'll be using the kgsshv16mini.zip for the amp board and kgsshvpsminifinalstn9360.zip for the PSU. Can you confirm if the following board sizes are correct? Thanks! kgsshvampv16mini: 183mm x 99mm kgsshvpsminifinalstn9360: 176mm x 167mm Edited February 17, 201511 yr by mwl168 Report
February 18, 201511 yr comment_673082 I noted an error on the silkscreen for kgsshvpsminifinalstn9360.zip file, the stated STN9360 should be KSA1156. Report
February 18, 201511 yr comment_673083 I think the kgsshvpsminifinalstn9360 board can accommodate both KSA1156 and STN9360. The STN9360 will need to be mounted vertically while observing the pin out specification. See Kevin's post #4014 in this thread. Although I can use additional clarification about the use of 270V zener with KSA1156. It would be great too if someone can share some insights of the pro and con between the choice of the two devices. Report
February 18, 201511 yr comment_673147 Anybody try with the amp boards vertical? I have a chassis idea/approach that would utilize this, and it would seem to allow greater airflow over the sinks if anything. Report
February 18, 201511 yr comment_673262 Anyone have an appropriate part number for the servo cap? Most of the parts I've bought are too wide, and the leads are too thick. I'm making an order to Mouser for some BH stuff but I figured I'd polish this off while I'm at it. Report
February 20, 201511 yr comment_673527 I think the kgsshvpsminifinalstn9360 board can accommodate both KSA1156 and STN9360. The STN9360 will need to be mounted vertically while observing the pin out specification. See Kevin's post #4014 in this thread. Although I can use additional clarification about the use of 270V zener with KSA1156. It would be great too if someone can share some insights of the pro and con between the choice of the two devices. I don't know if you would parallel the device to limit it to 270V or put it in series with the collector or emitter? Report
February 20, 201511 yr Author comment_673553 the ksa1156 is a 400 volt device. The 270V zener across it prevents it from blowing up on turn on. You can leave the zener there for the 600v part Report
February 21, 201511 yr comment_673695 Has this PCB for the carbon been validated to build copies? http://gilmore.chem.northwestern.edu/boards/kgsshvcarbonv1.zip Report
February 21, 201511 yr comment_673717 Has this PCB for the carbon been validated to build copies? http://gilmore.chem.northwestern.edu/boards/kgsshvcarbonv1.zip I hope so, because I just received mine //UFN PS: Looking at heat sink options for the Carbon at the moment - how much do I actually need? Report
February 21, 201511 yr comment_673739 Nope, no carbon files have been tested. You have been warned as that one was a rush job. Current is fixed so the voltage is the variable. I won't be going over 400V with this one, same as the Megatron. Edited February 21, 201511 yr by spritzer Report
February 22, 201511 yr comment_673809 If anyone wants some recent KGSSHV boards, I have two extra sets for the on-board heatsink version. kgsshvamp14mini.zip and almost kgsshvpsminifinal.zip (except it's version 1.0, not 1.1 — I didn't check closely what changed here between the previous final version and the current final version ). Please PM me if you're interested. Report
February 22, 201511 yr comment_673820 in the kgsshv psu can I get away with a 2W rating for the 15 ohm sense resistors? I was going to use some 3W-rated pulls from a busted supply but there's some soot and possibly cracking on the bodies Report
February 22, 201511 yr comment_673910 Thermal ratings on resistors are a crapshoot at best (hello Mills!!) so a 2W might work but it also might not. Try it and then measure them... Report
February 23, 201511 yr comment_674006 Glad I'm no the only who has had trouble with Mills resistors and there blotchy thermal heat dissipation ratings. Report
February 23, 201511 yr Author comment_674045 looking very nice reminds me of something but i can't remember what it is Report
February 23, 201511 yr comment_674049 I love the the look as well as well as dual jacks. Edited February 23, 201511 yr by purk Report
February 24, 201511 yr comment_674132 looking very nice reminds me of something but i can't remember what it is It reminds me of Goldmund preamps. Also the Spectral preamps made in the 90's (I think). Never heard the Spectral but a couple of Goldmund preamps I listened to were very nice sounding gears. Nice build. It looks very slim. Does it use shorter heatsinks or it's an optical illusion? Some interior photos would be great! Edited February 24, 201511 yr by mwl168 Report
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