I'd be shocked if a low cost FE appeared, with Toshiba JFETs charged at market (diyAudio Store) prices: ($30.00 / 4 ) = $7.50 per JFET plus shipping.
If you can wheedle your Uncle BigBux into selling JFETs from his mancave-stash at $0.50 each -- congratulations! The wealth transfer from Uncle BigBux to you, has lowered your effective price. You paid a portion of the total cost and Uncle BigBux paid the rest.
If you can wheedle your Uncle BigBux into selling JFETs from his mancave-stash at $0.50 each -- congratulations! The wealth transfer from Uncle BigBux to you, has lowered your effective price. You paid a portion of the total cost and Uncle BigBux paid the rest.
It's the same power supply with a different output connector. Since your probably going to use your own chassis, cut off the stock 2.5/5.5mm plug and replace with female 2 pin aviation connectors found on Amazon/eBay. Mount the mating male connector on the amplifier rear panel.
DIYhz GX16 2 Pins Panel Metal Mount Circular Metal Aviation Connector Adapter Male Female Plug Socket (10 Pcs) https://www.amazon.com/dp/B07D3CFRJ6/ref=cm_sw_r_cp_api_i_1EKYJTZXECJVH9F26ZBK
Thanks Vunce.
Also, I searched for a PDF version or web link at the DIY store for a step-by-step build guide for the Sony Vfet and wasn't coming up with anything.
Is there an actual build guide for the Sony Vfet?
The epidemic situation in China is increasing every day because of the stowaways in Hong Kong. Therefore, it has caused everyone's mental tension, and the work place has limited office hours. For those who need any components, I hope you can Send me an email so I can easily find the information
Then, wish the world peace, stay away from the epidemic, come on!
Then, wish the world peace, stay away from the epidemic, come on!
I got my DIYAudio Store boxes today. Thanks so much NP, Jason, and crew! I will be completing a SissySIT build before embarking on the VFET. Still stuff to source.
Today
1) P channel OS boards (I will confirm kits is completely not assembled, as I wanted)
2) Meanwell PSU
3) binding posts
4) ordered parts for a TUBA PSU board - voltage regulators due mid April, found the rest at Mouser
5) added the PSU connector for the VFET chassis to that order.
Already had (not built yet)
1) Dreadnaught kit
2) Bulwark kit
Pending
1) VFET chassis pre-ordered same day as VFET OS boards
2) need to order TUBA board(s) from FAB com
3) I’m sure there will be another order once chassis is in, and I see how things look (switch…)
entertaining switch suggestions, and any worthwhile upgrades
Today
1) P channel OS boards (I will confirm kits is completely not assembled, as I wanted)
2) Meanwell PSU
3) binding posts
4) ordered parts for a TUBA PSU board - voltage regulators due mid April, found the rest at Mouser
5) added the PSU connector for the VFET chassis to that order.
Already had (not built yet)
1) Dreadnaught kit
2) Bulwark kit
Pending
1) VFET chassis pre-ordered same day as VFET OS boards
2) need to order TUBA board(s) from FAB com
3) I’m sure there will be another order once chassis is in, and I see how things look (switch…)
entertaining switch suggestions, and any worthwhile upgrades
It’s more a matter of the cut out size on the VFET chassis being the unknown at this point. I love the vandal proof momentary switches, but don’t want to figure how to incorporate that to the Tuba board, just some decent double pole switch, that mounts on that backplane. If your choice fits, I’ll probably go for that one.
Just like I need to see what size hole on the front plate for LED, but then I think I have both the small and bigger blue LEDs already.
Decisions to make once the chassis is in hand.
thanks for the suggestions!
Just like I need to see what size hole on the front plate for LED, but then I think I have both the small and bigger blue LEDs already.
Decisions to make once the chassis is in hand.
thanks for the suggestions!
Thanks to everyone who placed an order for the output stages, pre-order for the chassis or registered their interested in front ends, filters, or completion kits. Sales were initially brisk as many people had been waiting for these, but we didn't sell out.
As far as expressions of interest for front ends, filters and completion kits, there was not enough interest to produce a completion kit. Compatible front ends from Nelson, as well as a filter, are planned for the store in a few months. A BOM for a suggested completion kit will be forthcoming.
As far as expressions of interest for front ends, filters and completion kits, there was not enough interest to produce a completion kit. Compatible front ends from Nelson, as well as a filter, are planned for the store in a few months. A BOM for a suggested completion kit will be forthcoming.
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Thanks for the warning Jason. I took this opportunity to snag an N-Channel set since the buying frenzy has stopped. I did not want to take a full kit from an interested person. About to start construction on the boards for the P-Channel kit. I have collected all the parts but the chassis (Pre-Order)
My system runs best with XLR cables, and I will be building the N-Channel kit into an amp using the balanced input card that Mark Johnson has brought to the table. Then I will have an authentic NP P-Channel VFet amp, in the silver chassis, and N-Channel, differential input, VFet amp to work on.
My system runs best with XLR cables, and I will be building the N-Channel kit into an amp using the balanced input card that Mark Johnson has brought to the table. Then I will have an authentic NP P-Channel VFet amp, in the silver chassis, and N-Channel, differential input, VFet amp to work on.
Hello,
I sent an email to the DIY Store for clarification but it's been unanswered.
My question is with regards to my recent order for the Vfet output stage.
Going through the parts (resistors) for the assembly of the Sony Vfet P-channel OS kit I noticed that I received a different pair of resistor values for the OS R8 as listed on the bill of materials from the NP PDF file.
I received two 10.k ohm resistors where the BOM for R8 calls for two 27k ohm resistors DIGIKEY part number PPC27.4KYCT-ND
Was there a revision change and the two R8 27k ohm resistors are now superseded by the 10k ohm resistors.
Also the link to ----> https://www.firstwatt.com/pdf/art_sonyv3.pdf -----> is DEAD!
I sent an email to the DIY Store for clarification but it's been unanswered.
My question is with regards to my recent order for the Vfet output stage.
Going through the parts (resistors) for the assembly of the Sony Vfet P-channel OS kit I noticed that I received a different pair of resistor values for the OS R8 as listed on the bill of materials from the NP PDF file.
I received two 10.k ohm resistors where the BOM for R8 calls for two 27k ohm resistors DIGIKEY part number PPC27.4KYCT-ND
Was there a revision change and the two R8 27k ohm resistors are now superseded by the 10k ohm resistors.
Also the link to ----> https://www.firstwatt.com/pdf/art_sonyv3.pdf -----> is DEAD!
The DIY Sony VFET OS2 Amplifier is here:
https://www.diyaudio.com/community/threads/diy-sony-vfets-os2-official-thread.384256/post-6971207
https://www.diyaudio.com/community/attachments/diy-sony-vfet-amplifier-os2-pdf.1035400/
The schematic and BOM for the P-channel 2SJ18 show R8 as 10k.
https://www.diyaudio.com/community/threads/diy-sony-vfets-os2-official-thread.384256/post-6971207
https://www.diyaudio.com/community/attachments/diy-sony-vfet-amplifier-os2-pdf.1035400/
The schematic and BOM for the P-channel 2SJ18 show R8 as 10k.
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Hi Ben Mah,
Well I received two 10k resistors for R8 not the two 27k ones as outlined in the BOM.
The DIY store has thus far been non responsive to my email request asking for clarification as to why I received those two 10k resistors and not the two 27k resistors.
Also I have the PDF from Vfet from the first lottery build P channel amp, but the little white sticker attached to me bag of resistors shows the web address I listed above as the place for the schematic/pdf.
I looked in my parts bin and unfortunately I don’t have the two needed 27k resistors need to complete the build.
Well I received two 10k resistors for R8 not the two 27k ones as outlined in the BOM.
The DIY store has thus far been non responsive to my email request asking for clarification as to why I received those two 10k resistors and not the two 27k resistors.
Also I have the PDF from Vfet from the first lottery build P channel amp, but the little white sticker attached to me bag of resistors shows the web address I listed above as the place for the schematic/pdf.
I looked in my parts bin and unfortunately I don’t have the two needed 27k resistors need to complete the build.
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No, I was at work and I meant that I received two 10k not the 27K. I was not able to edit my first post to clarify it.
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