Ok, This is a summarized information for the GB of Sony Version 2 VFET boards, to build the amplifier. Somewhere along the lines Nelson dubbed it "AL" and so it is called that.
http://www.diyaudio.com/forums/pass-labs/276711-sony-vfet-amplifier-part-2-a.html#post4379458
http://www.firstwatt.com/pdf/art_sony_vfet_pt2.pdf
My blog on the Sony VFET2 is here.
http://www.diyaudio.com/forums/blogs/tea-bag/352-sony-vfet-version-2-al-boards-build-blog.html
Here is the front end. 36mm x 175mm
Here is the Output Stage. 54mm x 285mm
So, here is a schematic to show what is really missing here, and what is added.
Recommended Parts
Here is an important piece. The boards are ideally connected via the following 2x10x2.54 headers and pins.
PN are
4 - PPPC102LJBN-RC - Digikey - S5563-ND
4 - PBC10DBAN - Digikey PN- S2111E-10-ND
Recommended
4- Front end Heatsinks - 637-10ABPE or similar
TL431ACLPR - Buy extra, if something will short, it will likely be these that die. The TL431B were found not to work well. Use "A" type.
Okay, Rundown of current pricing.
Set of boards 2x FE, 2x OS 35.00 1oz copper FE, 2oz copper OS.
http://www.diyaudio.com/forums/pass-labs/276711-sony-vfet-amplifier-part-2-a.html#post4379458
http://www.firstwatt.com/pdf/art_sony_vfet_pt2.pdf
My blog on the Sony VFET2 is here.
http://www.diyaudio.com/forums/blogs/tea-bag/352-sony-vfet-version-2-al-boards-build-blog.html
Here is the front end. 36mm x 175mm
Here is the Output Stage. 54mm x 285mm
So, here is a schematic to show what is really missing here, and what is added.
Recommended Parts
Here is an important piece. The boards are ideally connected via the following 2x10x2.54 headers and pins.
PN are
4 - PPPC102LJBN-RC - Digikey - S5563-ND
4 - PBC10DBAN - Digikey PN- S2111E-10-ND
Recommended
4- Front end Heatsinks - 637-10ABPE or similar
TL431ACLPR - Buy extra, if something will short, it will likely be these that die. The TL431B were found not to work well. Use "A" type.
Okay, Rundown of current pricing.
Set of boards 2x FE, 2x OS 35.00 1oz copper FE, 2oz copper OS.
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Hi Tea-bag,
I might have missed them from your blog, but what are the dimensions of the boards?
Thanks,
Dennis
I missed that, and it is an important point. I will add it in to both. Thanks.
AL FE 36mm x 175mm
AL OS 54mm x 285mm
For 2SK
I have a 7.66 and 7.8 available to to trade for the 9.60
For 2SJ
I have a 10.22
I would want to send these for you to measure to see if they match yours enough on your conditions before we horse-trade on anything. For the 2SJ, I might sell you mine as opposed to a trade, as I dont have anything close to 6.54.
I have a 7.66 and 7.8 available to to trade for the 9.60
For 2SJ
I have a 10.22
I would want to send these for you to measure to see if they match yours enough on your conditions before we horse-trade on anything. For the 2SJ, I might sell you mine as opposed to a trade, as I dont have anything close to 6.54.
Algar, I have some extra boards. I know for you we were trying to swap around some pairs. We should finish up with that process to see if we can get some working ones for yourself.
Also, others may certainly present any readings of extra unmatched pairs here, if you wish to swap with one another as well.
Also, others may certainly present any readings of extra unmatched pairs here, if you wish to swap with one another as well.
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