Interesting. Can you give a good closeup of the boards, as I am interested in the components that you chose to use.
Also, what power supply voltages and biasing did you use? What power output do you expect from it?
Looks good. What is the yellow/green stuff?
--
Brian
Also, what power supply voltages and biasing did you use? What power output do you expect from it?
Looks good. What is the yellow/green stuff?
--
Brian
Power output? No idea.
Like Dexter says 'there is much to be doing'. The input resistors need to be changed they are 10K right now I want to go with 37K for starters. The highs don't have enough 'bite' with 10k. Mid and bass are amazing. Same behavior I observed on the bosoz. At this point I am convinced one has to be able to measure the different frequency response, it's just too dramatic an effect.
For source res. I am using 2 panasonic .47 3 w in parallel on one board and some other metal film that chad sent me on the other. Mills will take over those as soon as I get them.
I posted a pic of the board earlier on the aleph-x thread. The 0.33 10w on the pi filter need to be substituted by something better, get up to 150 C and they de-gas(stink), I didn't know ceramic had that much volatile binding agent. I don't what I will end up using, maybe thermistors, I don't like the idea of having to solder many components on the cu plates.
As one can see no coupling caps here, XLR driven from the BOSOZ.
the green stuff is some kind of g10
Like Dexter says 'there is much to be doing'. The input resistors need to be changed they are 10K right now I want to go with 37K for starters. The highs don't have enough 'bite' with 10k. Mid and bass are amazing. Same behavior I observed on the bosoz. At this point I am convinced one has to be able to measure the different frequency response, it's just too dramatic an effect.
For source res. I am using 2 panasonic .47 3 w in parallel on one board and some other metal film that chad sent me on the other. Mills will take over those as soon as I get them.
I posted a pic of the board earlier on the aleph-x thread. The 0.33 10w on the pi filter need to be substituted by something better, get up to 150 C and they de-gas(stink), I didn't know ceramic had that much volatile binding agent. I don't what I will end up using, maybe thermistors, I don't like the idea of having to solder many components on the cu plates.
As one can see no coupling caps here, XLR driven from the BOSOZ.
the green stuff is some kind of g10
Grataku,
Finally you got it done. Looks really good! Now are you going to publish:
1. the part numbers (& vendors name) of all the components that you have installed on the board?
2. The capacitor values?
3. transformer size (& sec voltages)?
I know all this has been discussed to death on the other threads but .... in another word, I would like to built a prototype too that is exactly like yours ... except for the heatsink/chassis.
By the way, is it a pain in the neck to adjust the three VR? And most importantly, how does it sound?
Finally you got it done. Looks really good! Now are you going to publish:
1. the part numbers (& vendors name) of all the components that you have installed on the board?
2. The capacitor values?
3. transformer size (& sec voltages)?
I know all this has been discussed to death on the other threads but .... in another word, I would like to built a prototype too that is exactly like yours ... except for the heatsink/chassis.
By the way, is it a pain in the neck to adjust the three VR? And most importantly, how does it sound?
Chad posted some kind of BOM already...I think, plus this dead horse has been beaten to dust, I just threw on stuff I had laying around. There are still things to be modified. At the moment I am tired of soldering.
Where did you buy the Heatsink material from, I have the exact some stuff, about 8 feet of it actually. Got it all from ebay, I machined it to look like one heatsink.
Anthony
Anthony
me 3
Since you can't see that, I used velcro to attach them to the 1/4 in g10 plate for easy 'tweaking'.
Since you can't see that, I used velcro to attach them to the 1/4 in g10 plate for easy 'tweaking'.
velcro
Ah velcro rules, I have a server in my home office and I use industrial strength velcro to keep a pack of 3 80gig harddrives together, never fails.
What a man and his dog can invent.
Found this @ Mouser
Mallory Mounting Hardware
CLAMP 2.5-2.56
539-VR10 $1.350
Ah velcro rules, I have a server in my home office and I use industrial strength velcro to keep a pack of 3 80gig harddrives together, never fails.
What a man and his dog can invent.
Found this @ Mouser
Mallory Mounting Hardware
CLAMP 2.5-2.56
539-VR10 $1.350
tony,
that is actually a std profile heatsink I got from ebay, it was 36'' long and I cut it in 4 pieces.
that is actually a std profile heatsink I got from ebay, it was 36'' long and I cut it in 4 pieces.
is that an X in those wires at the top of the grounding plate?
Grataku... such nice work, why tempt the Blue LED Gods??
---------------------
moe29
-----------
🙂
Grataku... such nice work, why tempt the Blue LED Gods??
---------------------
moe29
-----------
🙂
Hey ststone - did you catch the Tori show the other night? She's
the best.
i'm up in Clearwater, and at the moment i'm building a BOSOZ
and a 5W SOZ. The SOZ is going to be done in monoblocks,
i'm working on assembling the chasis now. This is my first build
it from scratch project, so it's taking a while! I just finished
assembling the power supply of the BOSOZ tonight. I etched the
boards from the article and they're both stuffed. I'm just putting
them in some cheap alluminum chassis right now. I'm going to
use the BOSOZ to drive the SOZ using balanced inputs.
(hope i haven't crashed this thread!) ((pics when i get done!))
Projects like Grataku's are very inspiring! I hope what i build
turns out half as well
m.
the best.
i'm up in Clearwater, and at the moment i'm building a BOSOZ
and a 5W SOZ. The SOZ is going to be done in monoblocks,
i'm working on assembling the chasis now. This is my first build
it from scratch project, so it's taking a while! I just finished
assembling the power supply of the BOSOZ tonight. I etched the
boards from the article and they're both stuffed. I'm just putting
them in some cheap alluminum chassis right now. I'm going to
use the BOSOZ to drive the SOZ using balanced inputs.
(hope i haven't crashed this thread!) ((pics when i get done!))
Projects like Grataku's are very inspiring! I hope what i build
turns out half as well
m.
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