Yes, but from his site!http://www.ska-audio.com/Forum/YaBB.pl?custompage=order Someone here can build or modified this pcb. since He released the schematic to the public, I do not think He would mind.
Well, I think I would want his permission first. Even then, the interest might be very limited, because you can buy from the original designer.
I am making a few boards for Bonsai's nx-Amp, because he is a) not selling them himself, and b) he published all the information to encourage people to do that.
nx-amp build thread
Even there, and w. encouragement by Bonsai, only 4-5 people seem to be seriously interested.
I would hate to use information that was published for discussion and experimenting, and use it to clone his product. Just b/c someone published a schematic, does not mean it is automatically in the public domain to make copies of his design... 😕
Read the SKA website. Read the thread Rebuild by mikeg. mikeg has transformed the amp by rebuild and mod. The GB150 has been upgraded and better. Just ask Greg.
Some of the more recent posts on the SKA forum describe 0R15 source resistors on the output devices for improving bias stability. I am not sure if these are per device or shared
Thanks davidsrsb,
These are on the schematic, R28 and R29, but I have shown the rail terminals on the wrong side of them, hence the confusion.
I will fix the schematic tomorrow and repost.
regards
Looking much better. This is very much an eight Ohm design, though easily tweaked for a better match to 4~6 Ohm speakers, dropping the supply too and solving the BC556C sourcing problems in the process
If someone would post a foil pattern, I would be encouraged to break out my etching equipment. I have been interested in this amp every since Greg first talked about it a few years ago.
This is my SKA 150 amp.Love it hands down.
Having several dozen amps in and out of my room every year, I can say this amp is very dynamic.
Over several years displaying at RMAF I have teamed up with Gary Dodd and I can say without a doubt that this amp has very similar sound to Gary Dodds tube 50 watt monos which have a mid range balance that is just to die for.
AS a fact I just shorted out my leads for a long time and blew the resistors and back and forth with Greg and I had it going in a few hrs today.
Too funny I had been emailing him today and see this post.
Well worth the build....
Sorry wrong photo here is the amp
Top photo shows my old pair of Sound labs and the 150T..
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You are correct a complete STOCK build with no mods.That is what makes me so impressed with the AMP.
🙂🙂
Correct me if I am wrong but the SKA GB150D is a 2006 design. Greg Ball needs
an updated 2013 amp design.
an updated 2013 amp design.