The one from the BOM is right angle. I am looking for straight (and with solder lugs instead of pins, if possible).
NYS212 got solder lugs, but still Right angled... 🙁
You're right - not very expensive to just get all 3 and see what works... 🙂
Thanks for the 1-pager link. Very useful.
Never had an Amp Camp kit, and obviously been in Canada, cannot travel up there. Wouldn’t mind to get one of the kit. I do most of my listening with headphone these days, my oldest son being at home full time doing his college remotely, i cannot listen to my main system most of the time 😉 Finger crossed!
SB
SB
Here is my ACP build based on Nisbeths published design boards. Thanks @Nisbeth for providing this layout in a compact mono boards 🙂
Build pics as I went ahead and built it in pure dual mono using Salas ultra BiB psu boards pair as this preamp deserves better power supply.
Build pics as I went ahead and built it in pure dual mono using Salas ultra BiB psu boards pair as this preamp deserves better power supply.
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2SK2013 Q6
I finally got around to trying the Toshiba 2SK2013 in the Q6 position of my ACP. Sounds and measures really nice. The only adjustment I made was to lower R15 to around 700R. I haven't done any tweaking to R12/13, as it sounds really nice with 2R2/6R8.
I finally got around to trying the Toshiba 2SK2013 in the Q6 position of my ACP. Sounds and measures really nice. The only adjustment I made was to lower R15 to around 700R. I haven't done any tweaking to R12/13, as it sounds really nice with 2R2/6R8.
Attachments
Hi. Did my own version of the ACP+ with integrated 24V PSU. It was designed to fit an existing chassis I have in stock. Unlike the original it has only one set of input, and no output. There is the option to use an external wallmart AC adapter, just don't mount the 24V supply parts. It also supports two models of volume pot, the larger ALPS Blue Velvet and the smaller (and much cheaper) RK097. I'll probably end up with a few extra pcb to sell. SB
Attachments
I swear there were a bunch of posts here earlier about the R-core transformers pictured above. Anyone know where they went?
Nevermind, found em. That R-core discussion was about the same ACP+ build, but in the Pass photos thread for anyone interested https://www.diyaudio.com/forums/pass-labs/166784-pictures-diy-pass-amplifier-538.html#post6414627
Very nice! Have not gone looking but would go straight to the Toshibas when I get to build mine...
I took a 4 month break from DIY while having PLENTY of projects in a new house. I jumped online yesterday to see this ACP which looks VERY intriguing! A couple questions I have:
- I have two different matched pairs of J74 Toshiba JFETS. Can I use a different pair on each channel or do all 4 need to match?
- As for the wall wart Power, is it possible to use my wall wart from my Noir HPA? It's a .75A wart and not a .5A mentioned on Pass' page.
- Finally, is there a way to use a torroidal transformer with Jason Keutemann's Cap-Multiplier. I have been using boards from Rudi_Rozek on my Amp Camps with 24V with great results. Wondering if I could use one or maybe two on this amp. Not sure if I could use dual secondaries or if I would just use a transformer with a single secondary and a single board.
Thanks everyone in advance.
- I have two different matched pairs of J74 Toshiba JFETS. Can I use a different pair on each channel or do all 4 need to match?
- As for the wall wart Power, is it possible to use my wall wart from my Noir HPA? It's a .75A wart and not a .5A mentioned on Pass' page.
- Finally, is there a way to use a torroidal transformer with Jason Keutemann's Cap-Multiplier. I have been using boards from Rudi_Rozek on my Amp Camps with 24V with great results. Wondering if I could use one or maybe two on this amp. Not sure if I could use dual secondaries or if I would just use a transformer with a single secondary and a single board.
Thanks everyone in advance.
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- Yes, both pairs are BL grade
- Good to know the wall wart will be fine
- I cannot find the link to the group buy but here is a schematic & picture of the board. With 20V secondaries I am able to dial in the board to give out 24V on the Amp Camp 1.6 board. I just do not know if two boards are possible to use on this ACP or if one would work just fine.
- Good to know the wall wart will be fine
- I cannot find the link to the group buy but here is a schematic & picture of the board. With 20V secondaries I am able to dial in the board to give out 24V on the Amp Camp 1.6 board. I just do not know if two boards are possible to use on this ACP or if one would work just fine.
No need for a quad, use the pairs you have.
Yes, will work perfectly.
If you want to build a linear supply, by all means try! Sounds like a fun project.
You only need one supply of 0-24VDC.
Yes, will work perfectly.
If you want to build a linear supply, by all means try! Sounds like a fun project.
You only need one supply of 0-24VDC.
if you're going for regulated, with 24Vdc as target, use 24Vac secondary
that will cover all losses and cover possible mains fluctuation (-10%)
Looking to use Toshiba 2SK2013 on the outputs. Any reliable source here in DiyA? I can also trade original 2SJ74s for them.
I'm surprised no takers for my offer of 8mA matched Toshiba 2sj74s quad jfets?! Still looking for 4 Toshiba 2SK2013 mosfets. I'd rather a diyer here gets these very rare jfets.
I'm surprised no takers for my offer of 8mA matched Toshiba 2sj74s quad jfets?! Still looking for 4 Toshiba 2SK2013 mosfets. I'd rather a diyer here gets these very rare jfets.
You may have better luck in the Swap Meet section https://www.diyaudio.com/forums/swap-meet/
ACP+ BOM
Hi folks,
I've been working with 6L6 over the past month to put together a BOM for the ACP+ project with an eye on assembling a kit in the future from the BOM. Before we go ahead with that, we wanted to seek feedback from the community, so I am attaching an XLS version. Please look it over and let us know what you think.
Note that the file below had to be put on dropbox/share as the forum will not accept .xls files.
--Tom
Dropbox - ACP Plus Diyaudio BOM.xlsx - Simplify your life
Hi folks,
I've been working with 6L6 over the past month to put together a BOM for the ACP+ project with an eye on assembling a kit in the future from the BOM. Before we go ahead with that, we wanted to seek feedback from the community, so I am attaching an XLS version. Please look it over and let us know what you think.
Note that the file below had to be put on dropbox/share as the forum will not accept .xls files.
--Tom
Dropbox - ACP Plus Diyaudio BOM.xlsx - Simplify your life
The forum will let you attach a file whose type is ".zip" and that is what I often do when I wish to upload an .xls or .xlsx spreadsheet. Create an empty .zip archive, store a copy of the .xls inside the archive, and upload the .zip.
hope this helps
hope this helps
