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Old 11th December 2008, 07:12 PM   #2481
valo is offline valo  Norway
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Its realy alive now..

I have been testing differents output resistors, 301/100 worked best on my DAC.. Tomorrow i will remove L901 and trye some new caps in my psu..

Ihave been werry inspired from pics of the beautyfull cd player know as Lektor V (http://www.ancient.com.pl/e_lektor.htm) so iam gonna trye to copy that look

Click the image to open in full size.
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Old 11th December 2008, 08:44 PM   #2482
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good luck Valo - very nice looking idea for your player...Lektor looks very nice....
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Old 11th December 2008, 09:09 PM   #2483
valo is offline valo  Norway
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Just wondering ... What will happend if i do put in lets say 60000uf or 120000uf in the psu , in that way i guess the cd player will almoust be battert powerd, and will it make the sound better or is it just a big waist of caps?
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Old 11th December 2008, 09:15 PM   #2484
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i assume that last thing you said..... otherwise there will be few guys running it on batteries or bunch of huge cans

heheheheh

bigger is not allways better ;D
hehehehehehehe
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Old 11th December 2008, 10:12 PM   #2485
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Quote:
Originally posted by valo
Just wondering ... What will happend if i do put in lets say 60000uf or 120000uf in the psu ,
Without soft start you may have problems with diodes blowing

Personally, I usually prefer as little capacitance as possible.
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Old 11th December 2008, 10:28 PM   #2486
valo is offline valo  Norway
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Quote:
Originally posted by Peter Daniel


Without soft start you may have problems with diodes blowing

Personally, I usually prefer as little capacitance as possible.

I got the idea from this cdplayer, and this one is not an DIY player .. looks like a mess in ther but nice on the outside
Click the image to open in full size.
Click the image to open in full size.

anyway iam saving my big caps for an nie amp
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Old 11th December 2008, 11:15 PM   #2487
massimo is offline massimo  Italy
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Sorry Peter to bother you once again, but I have some more questions for you:

In your lastest transport, the exact value/type of the BG used in the pw supply are: 1st and 2nd cap close to the LM7808 are BG 1000/25 std, the latter bypassed by a 4.7/50 N. Than, after the on board transistor suppling 5V another BG 47/50 N. Correct?
What do you think if I replace the 47/50 N with a 100/16 FK? I have some of these caps unused.

Where did you source the frosted acrylic top? Did you find some cutouts? In my town I can find std types (glossy) cut to measure, but Perspex Frost (made by Lucite) only on special order and I have to buy an big exepensive sheet (1 x 2 m)

No problem with the copper sheet: I got an heavy piece (1.8 kg) cut to measure 230 x 170 x 5 mm for 15 euros, not bad.
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Old 11th December 2008, 11:23 PM   #2488
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Quote:
Originally posted by massimo
In your lastest transport, the exact value/type of the BG used in the pw supply are: 1st and 2nd cap close to the LM7808 are BG 1000/25 std, the latter bypassed by a 4.7/50 N. Than, after the on board transistor suppling 5V another BG 47/50 N. Correct?
What do you think if I replace the 47/50 N with a 100/16 FK? I have some of these caps unused.
4.7 BG N is added to the cap before the regulator.

I can't comment on 100/16 FK as I never tried it here. FK sound different from N so I can't even predict the results. You need to try it yourself.

I found acrylic in a local surpluss place.
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Old 11th December 2008, 11:31 PM   #2489
massimo is offline massimo  Italy
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Thank you Peter.
Anyway you confirm the two big caps close to the LM7808 are both BG 1000/25 std?
I'm going to place an order for BG.....
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Old 11th December 2008, 11:54 PM   #2490
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Yes, those are BG STD 1000/25
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