It's even more difficult to find than 2SJ74/2SK170. At least I still have several hundreds 2SJ/2SK in stock.
They both should be avaliable soon according to Linear Systems. I thought you had only a few Toshiba parts left?
Yes toshiba stocked at the beginning of 2011. There were 3000 pairs at the beginning, almost sold out. It's really hard to find real parts now. Tried several sources but all fake.
Well I started with my DIY case with the Fischer heat sinks 500mmx 300mm .1d/w, you dont loose much by reducing the height by 100mm, actually only drops 0.02 d/w. The investment is pretty heavy 1300 chf for 2 heat sinks and 6 week lead time (So I hope the boards will be ready some time around then, but rules me out as being able to be a prototype tester)
This is certainly going to be a heavy investment
The rest of case design I have to start now
Tea bag I am keen to get som FQA devices when the are avaliable
Jacco thanks for te advise on the voltage etc, I guess I need a least a 1000VA trafo - so now to source that monster
Beta testing
I know there isn't much to test with the PS boards but I would be able to build one or two supplys and report.
For testing the circuit boards I don't have time enough.
I know there isn't much to test with the PS boards but I would be able to build one or two supplys and report.
For testing the circuit boards I don't have time enough.
Ok, I want to get going.. I just sold my old amplifier, and it's eerily quiet in my house.....
Which hifi2000 case for a v3 (unmodified) ?
Which hifi2000 case for a v2 (unmodified) ?
Which hifi2000 case for a v3 (unmodified) ?
Which hifi2000 case for a v2 (unmodified) ?
one 5U 400-500mm for V2 stereo.
two 5U 400-500mm for V3 mono.
maybe 4U will do. that depends on your rails and bias.
two 5U 400-500mm for V3 mono.
maybe 4U will do. that depends on your rails and bias.
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IMHO, these cases have too short fins.
Better to start with apropriate heatsinks and build your own case around.
Better to start with apropriate heatsinks and build your own case around.
HiFi200 cases:
5U/400mm w/10mm faceplate is EUR210 (4 200x40x210mm heatsinks)
5U/500mm w/10mm faceplate is EUR260 (4 250x40x210mm heatsinks)
They have volume discounts 2 = 6%, 3=10% .. so for 2 it's EUR244.40 plus shipping. Shipping won't be cheap, so get a quote before you order. If shipping to the US, expect a call from FedEx explaining the material of "screws" are made from...
I would ask for blank rear-covers as they sometimes have cutouts for power sockets and you might prefer a different location. You can also ask for blank top/bottom covers, full vented top/bottom covers for no additional charge.
Not really a fan of the feet they offer, they have a rubber insert with a hard plastic exterior shell that falls off. I've picked up some Peavey feet that seem to do the trick better than what HiFi offers.
Bracing with for the bottom cover is lacking. If you notice in the picture the top screws are only on the sides, the bottom is the same, but there should be something in the front and back as well if you plan to mount feet and a heavy transformer to it. Easy to address though, but something I would recommend asking HiFi for those about to order the case.
Jim
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have you tryed?
i have. so i know they perform.
with 100W dissepation pr ch. the sinks was about 20C above ambient on a 5U 500mm.
the fins are not smoth. so the aria is same as at least 60mm smoth fins.
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4HE , 400 deep - is good for 100W diss per side
An externally hosted image should be here but it was not working when we last tested it.
At those prices + shipping to the US, I would think it better to build your own case .. DIY ... look at that...🙂
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yes🙂 they are efficient those bastard sinks😀
are your fins smoth? the one i had did not have smoth fins.
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that depends. heatsinks are expensive and heavy and expensive to shipp.
also, 10mm frontplate and oxidised is not cheep. i bet a simmilar DIY chassis will cost just as much. most have to get sinks shipped half way around the world.
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