nopants

don't invalidate my posts with intelligence and wit

Is there some way to make a super long chain where they explode domino-style if you attach power? I would enjoy a gif of this

I thought that was the model number, Microsoft Surface Pro...Win8, The fuck? I'll be honest though, I don't find it that bad as long as I disable the start screen. Something about ads in my desktop-oriented programs that gets to me.

Could that just be a way to make it less serviceable? He seems to tout that.

seems like it's the same tier as the hv, and easier to build (because we don't have to mount output devices to heat sinks) What's the current output at the last stage, 10mA? Can we also use the 01n100nd? I only ask because I have a shipment of those coming in with enough extras for the CCS.

Have the pinouts of the smd components been fixed? I seem to remember there being an error on the kgsshv board, the input fet pair I think? Any special current requirements for the HV transformers?

It gets somewhat hot, nothing crazy. However, it's encapsulated so that probably obscures my perception somewhat. This was using it in the open, I just shoved it into something loosely resembling a case. I'll get back to you with a number when possible.

Seems more relevant to chime in here than the other thread, but I've noticed my megatron transformer from SumR started humming, which has turned into a buzz. Maybe I'm running it too hard? I used the specs from Tran's page: Pri: 110v/220v. Sec: 2x 420v/130mA, 16v-0-16v/500mA

Per kevin's suggestion I ran the board with only one channel's tubes populated- that made the 300V rail sit at 307, both channels populated read as 270. I dropped extra on the rebranded RFT's because I wasn't really planning to roll tubes- that would straight up drive me insane. I did end up impulse buying JJ's 12ax7 though since they were fairly cheap, and there are differences... but I have to resist rolling for the moment. Life finances are taking their toll, luckily I had all these parts sitting around before all that bullshit. I only have the mk1 at the moment- there's a lot of detail in both amplifiers but the presentation is different enough between them that it makes you question which is "more neutral". The only thing I readily perceive listening to the Megatron is a lack of any particular emphasis on the three main frequency bands, which leads me to believe it's more even/neutral overall. Right now I'm just enjoying the fact that there is sound and it's fairly glorious though. This all being said, I have zero desire to case the thing up now that the damn thing works. Maybe I'll just cover it in cardboard when I'm not using it

Well scratch the hum issues, but I am getting music out. SumR transformer hums when powering the board, and I'm getting hum issues from what I assume is the input filament transformer. I'm getting 270 on the rail, which increases to 307 with only one channel populated. My first impressions are that there is noticeably more treble detail and slightly less bass impact than the kgsshv. I find the presentation more even across the spectrum as a result, but it also makes me aware of my sensitivity to sibilance on certain recordings- something I didn't experience as much with the kgsshv. I also agree with ristar's comments, there's more of a sense of "space" and "separation", but that could also be related to the frequency response. All in all sounds great so far but I need to fix the hum issues before I make a real assessment. On the aesthetic side, this thing looks fucking insane with the filaments going everywhere. Some specs (I know I've mentioned these before, but collecting it in one place might be useful for others): normal PSU, 2n3904s ripped out 20k to drop to 300V SumR transformers for HV and output filaments antek transformer on input wima between 12ax7 and 6ca7 mundorf mkp between 12au7 and 12ax7 telefunken 12au7 toshiba 12ax7a national electronics 6ca7 I'm considering that Maida 21st century regulator for the 300V line, but it seems like serious overkill. I also have an extra bridge left over from the PSU, the input stage heaters could also work with just rectified DC right? Maybe a future revision could have an optional spot for this. EDIT: ground your XLR's kids, it works perfectly.

I was looking at the surface pro 2 to run foobar to my dac (as well as some light computing tasks) when I heard it supposed to be silent, but I believe the new one still sports a similar chassis (if not the same) and most likely a fan. I've used the touch cover and it feels alright as long as you're not typing anything meaningful.

Waiting on the resistor to drop the +450 to 300 and we're a go for power on. Power supply sitting pretty at +457/-456. Those who are opting for a SumR transformer should get the encapsulation, no hum issues for me.

We should still be fine with the default values populated on the amplifier and supply right? My wallet is pleading with me to not place any more orders from Mouser, fucking taxes and shipping I hope ristar's can post some guts pictures once he's done placing components in the power supply chassis.

congratulations, that offset is better than what I can adjust to in my kgsshv

power and filament transformer arriving from sumr this weekend, should be able to finish (finally). Going to try the input stage with AC first, but I have a Millet Regulator lying around as well. Mundorf supreme leads are too thick for the wima spots, for anyone that was curious

Where did you pick up a transformer like that, torodiy? Maybe you can hook up a kgsshv out the back while you're at it

MOAR AWESOME inside the warning symbol might be appropriate

Just to double-check...these are the same diodes found in the old PSU (STTH1210D), you're saying we can't use these anymore? A quick google search doesn't yield anything meaningful for stth512fb While we're at it, can we still use the KBU* part for the new psu's LV bridge (vs RS402L)?

So those are a direct drop-in replacement then? I think I have some extra 1486 lying around from a bdent splurge.

I'm mostly done with my stuff,waiting on the transformers. I haven't touched it in a while so I need to revisit it in detail for errors and such. Also bought some mundorf supremes for coupling between input and output stages, any suggestions for other candidates I might use? Maybe I'll socket those spots...

Ironically enough I'm having trouble sourcing the 1156 for the blue hawaii

I can't believe trendsetter charges 20$ for shipping, I ordered direct from linear when I got my kgsshv parts- I believe they're about 6 a piece that way. I'm also local so that cut down on shipping. Have to order over the phone but that's a small barrier.

He could be busy, should probably relax a little

For anyone interested I got a quote from SumR for a 6 x 6.3Vac @ 2A / 76VA transformer, $98 each before shipping. Encapsulated into container, leads out lower side for flush mount: Container OD: 4 1/8”, HT: 2 1/8”.

I thought that feature came by default, I was going to cure my fish and meat with this