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Old 28th January 2003, 02:26 AM   #1
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Default Project update Aleph5

It seems to me that were going to be flooded with nice Aleph 2,5,x project in the very near futere.

Just some pictures of my ongoing project. I will probably wire everything up this weekend.

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Old 28th January 2003, 04:01 AM   #2
moe29 is offline moe29  United States
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Wow! looks great.
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Old 28th January 2003, 12:15 PM   #3
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Another good looking upcoming project ive seen tonight!

I love the p2p wireing you've done on the outputs, inspired me

Keep up the good work and show us more pic's later!



Scribble
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Old 28th January 2003, 09:31 PM   #4
Mad_K is offline Mad_K  Norway
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Very nice, indeed!
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Old 28th January 2003, 09:48 PM   #5
swede is offline swede  Switzerland
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Default www...

And in the background (on his monitor) you can see that he is faithful... 100% http://www.diyaudio.com!

//magnus
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Old 28th January 2003, 11:42 PM   #6
MikeW is offline MikeW  United States
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It looks very nice. How big is the transformer? What kind of output Mosfets? How high are you going to crank the bias?
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Old 29th January 2003, 12:00 AM   #7
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Mike,

there are 2 tranny's 2x28V 500VA (amplimo/plitron); 12*10.000uF p/ch ;6xIRFP240 p/ch

All compartimets will be separatebly shielded with mu-metal (which I recieved today from planet10). There will also be a layer of mu-metal between the transformers to reduce parasitic working in the PSU

Connectors will be WBT's.

I have no idea what the final bias will be but have already installed a nice small pot for experimenting. Because the heatsinks are of a moderate size it will be near standard value
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Old 16th February 2003, 07:50 PM   #8
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IT WORKS

One channel is up and running with only 9 mV dc-offset. That's not to bad at all . I just powerded it up watch looked out for smoke which wasn't evidently there and just connected an old speaker.

Hopefully channel number two will go as smoothle as this one.

There is still a little bit of hum but the ground is still directly coupled and that will be thru a thermistor as soon as the other channel is up and running.

Ralph
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Old 17th February 2003, 08:18 AM   #9
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Where did you get these insulators?
(And How much do they cost?..)

Here I can hardly find micas but using thermal grease it's so messy....

Cheers

Andrea
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Old 17th February 2003, 12:42 PM   #10
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That are berquist insulators I bought them with all other components at digikey
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