kevin gilmore

But then it would take 500 years to charge...

Someone buy it and send it to mikhail. He likes big caps... Perfect for DC fillament supplies.

The 2sa1968 is the ONLY p type device i have found that has a voltage greater than 600 volts. It is not a high power device. Its use is primarily focus applications for high-resolution CRT tubes, and we all know where that is going. So expect that devices to disappear soon. A fully dual tracking shunt regulated power supply with only n type devices is definitely very possible. But you need an isolation amplifier and a second set of +/-15 power supplies to drive the negative supply.

My original board layout is pathetic compared to the stuff justin did afterwards. Someone would need to do a new layout complete with ground plane and all that other modern good stuff. Don't try and build the original power supply. Go with a BH supply set for + and -350 volts. Which requires dual high voltage secondaries. Oops forgot about the 2sa1968 as the current source. I'm using something else for current sources these days. That is a 900 volt part anyway. The pass fets can be anything rated at 600 volts or more. Pretty much anything works...

2sa1968's not needed for kgss. Think KGBH power supply. Front end fets can be matched from single devices if necessary, but lsk389 is a wonderful part.

The extra capacitors in the signal path part is not necessarily true. It can also be done with the same number of tubes, and slightly higher distortion.

Capacitors in series are CAPACITORS IN SERIES no matter how you wire the power supplies that feed them. So 2 x 100uf /450 volt caps in series is the equivalent of 1 x 50 uf 900 volt cap. If all the caps are value C, then the total capacitance is C/n

Anyone that thinks tyll is even the slightest bit a normal ceo needs to think again. Evanna Manley has a much nicer chest, but evidently does not show it off anymore. The day tyll dresses up in a james bongiorno outfit is the day we have to run away screaming...

I'm 99% done with my 6.4 watt 532nm laser for my home christmas show. Finally a way to compete with the neighbors and their 5000 lightbulbs... (1.75 volts at 24 amperes) The 650nm laser should be done by the end of the week. (about 8 watts) The blue is going to be a bear...

All you have to do is either fill the center pin with solder, or remove it from the front and put in a black screw and nut.

Absolutely. But also custom. I have filament transformers for xray systems that sit at -60kv. The higher voltage they can withstand, the larger they get.

You can make a supply the same way as my original ac coupled tube amp. That is use a center tapped secondary, or in fact two seperate windings each of which rectified makes something like 400 volts with 450 volt capacitors. Then stack the two and make the bottom ground. Only issue is whether or not the transformer has enough isolation for the top winding to sit 400 volts above ground. Normally these transformers are rated at 1kv or more, so it is not a problem.

someone is paying attention...

Nate, why did you have to go and publish the schematics? Now ray will finally be able to finish his A10... (not a chance)

Solidstate-tube is what i think it stands for. Differentiates it from a BH which is also solid state-tube, but is grounded grid output. What's in a name anyways...

The Emm stuff is certainly nice stuff. But i don't like the almost complete lack of a dealer network in the usa, combined with grief shipping across the border into canada if the thing needs repair. I've seen early emm stuff with lots of cuts and jumps. You don't ever see that on krell gear. Also lots of complaints with his early transports, and even some problems with current transports. And the 6 channel preamp has a design flaw relating to volume matching of front and back channels. If you can buy a computer dvd drive for $40 that works perfectly almost forever why can't they make sacd drives do the same thing. Same laser, same bit rates.

I have an original mark 1. Original transport. Its better than the sony in every way. Another reason the sony gathers dust in the basement. For cd's at the time i was using my krell kps20il-d9. which is still a great but cd only player. I still have it, and it still works perfectly. It does seem that people that have the most trouble with the transport push the door closed. I have never done that. I just press open, put a disc in and press play. Sony seems to have a history with expensive fuckups. The scd-1 is one example. The entire qualia line is another, expecially the -004 projector. And lets not forget the 700+ lb 45 inch direct view trinitron circa 1992. A number of the expensive players, like the esoteric don't actually do native sacd, they convert to 196/24. I would rather have native sacd.

See if sony did not have their head stuck so far up their ass they would put encrypted outputs on their $300 sacd/dvd players, then you buy a kickass dac from someone who knows what they are doing (like krell). Then when the drive dies, you throw it in the garbage and get another one. I happen to have 2 of these $300 pieces of crap. They never seem to break. Sound like shit in comparason to the real things, which is probably why they will never break. Was not aware the cary was the same transport, but the classe' certainly was, their 2 box version of the scd-1 was like $10k. All the same problems... If (when) my krell dies, there is a dealer just down the street, will have an evolution next business day...

I have a sony scd-1. First $1000 gets it. Guaranteed not to load half the discs you have. And then i never want to hear about it again.

Have one of the original 50 handmade in usa krell units. Love it. Not a single problem with it as it has one of the hand made transports. More than 4 years old now, and not a single skip or disc error. If/when it dies i will get the evolution. All the new units have, or can be upgraded to a problem free transport. The sound is what you are after, and its typical krell.

If they are unipolar elements like the pictures sure show them to be, then the bias has to be added to the audio signal. No bias and they sound like shit. A stax transformer box without modifications cannot add the bias this way.

so that is what yorkies look like when they are groomed...

you obviously have not seen the original schematic drawn on a bar napkin while i was in hawaii. (and very drunk at the time) I'm pretty sure it was a joke as i finally have forced justin to do hand drawn schematics. that look as bad as some of mine. Anyway jazz or blues would definitely be ok by me for the concert part of next years party. Drinking not allowed at the meet Where is the fun in that...

Next year why not just throw a drinking party. If its in chicago, i'll promise to bring at least 5 bottles of scotch the youngest of which will be 30 years old.

where's aerius when you need him ?