Salas hotrodded blue DCB1 build - Page 295 - diyAudio
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Old 26th March 2013, 05:21 PM   #2941
stajo is offline stajo  Sweden
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Quote:
Originally Posted by Praudio View Post

So at first ; what I am looking for ; what components I must suspect.

Where is DCB1 diagram on DIY

Thanks for your help.
Check diodes w battery or so first. They easily go south with to much solder heat. Then start measure voltages over comps from PSU and down. Diagram in post #4 this thread.
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Old 27th March 2013, 07:38 PM   #2942
atupi is offline atupi  Romania
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I've just finished my DCB1 build and sounds really good from the first power up. One thing is not clear to me, what cap to install in the middle of pcb?
I see there 0.22uf but also 100uf elco.
What's the idea of two caps and what is the best choice ?

Adrian
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Old 27th March 2013, 07:52 PM   #2943
Tea-Bag is offline Tea-Bag  United States
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non hot rod design used 100uf.
Hot rod style uses .22uf typically, but it can be somewhat bigger or smaller.
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Old 27th March 2013, 07:58 PM   #2944
atupi is offline atupi  Romania
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As i have 10R resistors installed so is hot rodded
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Old 27th March 2013, 08:13 PM   #2945
Salas is online now Salas  Greece
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Try film cap, try good electrolytic cap, and decide for your system with own ears is best diy.
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Old 1st April 2013, 06:25 PM   #2946
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Try polystyrene caps (Styroflex in Europe) - to my ears the offer the right combination of clarity and warmth.

Today a friend and I managed to use an old heatsink I for to finish hotrodding. Moved down from 3.9R via 1.95R to final 1.3R (= a litte more than 1A). The sound changed is pretty breathtaking. The presentation gets more solid, you get a lot more natural timbres (colours) and any hint towards harshness disappears. This preamp is absolutely unbelievable.....IMHO.

Cheers,
dubai
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Old 1st April 2013, 06:39 PM   #2947
Tea-Bag is offline Tea-Bag  United States
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Here is my homely DCB1 facing sideways running 2R current, driving big_A speakers with F6 at a fellow member and neighbors house.
Good times.
Attached Images
File Type: jpg DCB1_F5AL.JPG (110.0 KB, 248 views)
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Old 1st April 2013, 09:14 PM   #2948
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Looking good -that's what I'll need next - a propper chassis......
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Old 1st April 2013, 10:34 PM   #2949
mantha3 is offline mantha3  United States
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Tea-Bag,

What chassis is that? Mind sharing the source?
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Old 2nd April 2013, 01:16 PM   #2950
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Quote:
Originally Posted by mantha3 View Post
Tea-Bag,

What chassis is that? Mind sharing the source?
You can get nice chassis from the DIYaudio shop
Full width with 40mm Heatsinks - Chassis

You can also buy them directly from Modushop in Italy (Pesante Dissipante section)
modushop.biz

Also on Ebay
FS 430 Full Aluminum Power Amp Enclosure Case External Size 430mm 150mm 314mm | eBay

There's also many more sources

Ciao!
Do
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