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X-Bosoz GP

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#84
Volume? I'm going with the Gears. Although I might replace the blue Alps pots with some conductive plastic continuous pots.

I'm going to rip my BOSOZ apart, replace the 2 stereo boards with the X boards, and put the 4 power supplies in a separate case.

And maybe add some leds and/or make the existing ones brighter. Just kidding.
 
#85
I know that Kari has made a wonderful work and service for other GB but it seems odd what now happens. Time passes and we barely hear from him.

I see some unrest from other members not hearing from Kari or not answering their basic questions such as a schematic for the final board. Not to say that I’m in a hurry since I have some other things at hand.

Any suggestions of what can be don?
 
#90
Kari said:
Well i have finally received our boards. I'll start packing and sending tonight!

/Kari
Click to expand...


Great! appreciate the update. that was about 8 days ago and the wiki does not indicate that anything was sent.

1. Anyone know whether these were sent or not?
2. Anyone got an accurate schematic showing the options?
 
#91
lgreen said:



Great! appreciate the update. that was about 8 days ago and the wiki does not indicate that anything was sent.

1. Anyone know whether these were sent or not?
2. Anyone got an accurate schematic showing the options?
Click to expand...


I've asked three times on the xBosoz GP threads here and in the PASS forum and emailed Kari and have not received any reply.

I really appreciate Kari volunteering for for the GB, but some kindof reply to a question like schematics availablity would be helpful.

-David
 
#94
schem

I think it has been established that the latest version of the schematic and board do not match each other. See Post #392 and read up to like #404 or so.

Maybe someone who thinks they know what parts go where or who made a parts/digikey order and give us a starting point?
 
#95
Boards arrived.

Hi all, just received the boards today. They are great looking🙂
Absolutely worth to wait a bit for😎
Thanks a lot Kari, once again, for a superb set of boards🙂
Mine were sent from Finland, so seemingly his is sending them out, while on the road.
BTW, the latest schematic was never posted, only the initial sch. was. Kari did post the BOM, for the actual boards here:
http://www.diyaudio.com/forums/showthread.php?postid=638685#post638685
All components and values are silkscreened on the boards.
Once again, the boards are just cool.

Steen😎
 
#97
For the cascode option, Kari had discussed with me what I had used in my cascoded BZLS, and I believe he modified the board along those lines. If so, the cascode transistors are simply another pair of IRF610's, the voltage reference is a TO-92 package 10V precision reference (I used DigiKey Part# LM4040DIZ-10.0ND). The resistors feeding current to the voltage references aren't critical, with values between 10K and 50K being appropriate.

Cheers, Terry
 
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