G600
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Posts posted by G600
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Gentlemen,
Is there anybody here with some Xicon surplus?
I'm finally having my batteries reworked, and I'd like 24*820k + 8*390k + 4*62k.
Thanks
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Quite little for my taste...
Did you use a magnifying glass?
Glad it went alright.
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Do you have a timer setup for that chair-heating "device"? ?
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I think that correct interpretation of measurements requires a huge lot of knowledge and experience.
Read Nelson Pass description of curves for example...
The easy way is probably to over-interprete things.
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Don't get fooled by the latest fashion.
Buy one, enjoy it, and if it's not enough you can change afterwards.
I bet it'll be keeping some money value in the future.
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Why don't you get in touch with Birgir?
Mjolnir Audio. Not cheap but built for a lifetime, not mentioning the small footprints he delivers...
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Proper funding is mandatory for those DIY projects.
Not mentioning killing yourselves with fake sand, along with troubleshooting made impossible not knowing who's who.
Saving a few ten or hundred bucks is bullsh*t, common, you are going to play those with top dollar headphones, and they are designed to last decades.
Quality remains, prices forgets. And some savings are costly.
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Soldering in music... sounds like Head-Case panache!
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Any update on this GB ?
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Incredible !
Everything look easy in your kitchen...
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Another route would be to identify the critical resistor, and if they are few enough, buy texas components metal foil tailored to your value and tolerance ?
May be a plus soundwise too...
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At least one full set for me, and depending on cost some more.
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We definitely need a group buy for those PS.
All-in-one PSU for the miniT2 kept mini (apart from the transformers, but that's another story).
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Have you tried it with FETs instead of THAT340 ?
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Do you see critical resistor, some that will benefit from lower ppm or tolerance ?
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Excellent work as usual, JoaMat.
Please let us know if you test those values in your working unit !
I'm thinking of populating the SMD resistor with the fine Susumu RG (thin film). Used them in the QRV-08 (Sjostrom).
1206 are 200 V rated and 805 150V, should be plenty.
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Kerry's mini PSU are so interesting for such a tiny amp !
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Why don't you just buy the thick ceramic pad and a PEEK screw ?
No insulation tester, no fried sand and no risk of being transformed in charcoal.
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You could extend soldering pleasure by making your own volume control instead of RK50.
For example a Seiden 32025 with the matching set of resistor for 10K http://www.goldpt.com/r_series.html
You could make 3 for the K50's price.
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A lot of fun indeed.
Just go slow and double check everything.
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29 minutes ago, mwl168 said:
Where was the fire?
+1
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Yours is safe.
But just take a careful look before starting populating the Beast.
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Scary indeed !
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6 hours ago, GeorgeP said:
What is yours doing? If I recall you have the shrunk board from the failed lil knight group buy. Interestingly, I cannot recall reading anyone who has had any issues with the corrected boards, until now. Even S_R's first build, using the same board iteration, had no issues.
Sometimes I hear some random cracks.
They come and go, and at some point the channel goes south.
Voltages are off, with something like 40 V between the two right batteries, and a very large offset at ouput.
It could be cured instantaneously by putting a Voltmeter between battery testpoint and +500V supply entry.
Tried to adjust the batteries in many ways, but it comes back anyway.
I have also uprated the compensation cap to 15 pF. The amp runs cooler afterwards, but the problems is still happening.
The ultimate DIY? A Stax SRM-T2!
in Do It Yourself
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As I don't have any running project, It is a 2$ basket with 25$ for fedex, that's why I ask here in the first place.