The case design, the PCB layout, the circuit itself are all blatant ripoffs which could easily be proven to eBay to be stolen IP.
Ebay is not eager to remove listings. Their requirements are either patents
or registered trademarks.
Even then they are not eager, and the attorney has to beat on them about it.
😎
There is no proof that the so called V-fets are the real thing. Same for the J-fets. I would be reluctant trust any obsolete part coming from Asia unless it had some respected person giving their blessing as Nelson did the V-fets from Circuitdiy. By the way Circuitdiy still has the 2SJ28 V-fet. Nelson one day may design a SE amplifier around this V-fet for diy'ers. Mike Rothacher has already designed an amplifier this V-fet could be used for. Diy'ers should get some while they are still available. I am holding onto mine I bought last year along with another set of 2SK28's & 2SJ28's besides the kit I bought from the store. All these V-fets will only increase in value in the future.
I don't mind the cost - it's peanuts. Was wondering more about the most important criteria for the two capacitance values and various spots. I'd happily use Silmic II for all 8 locations, but not sure it's best suited for the whole board.
BK
So do I. I plan to make the lsk available to diyers if I buy the supplemental kit when/if it goes on sale.
I spent several hours last night watching the Olympics and working on a bom. It was kind of messed up when I finished!
I'm glad to hear you're taking care of this Mark! I can wait a couple of months for the pieces. I've promised my wife I'd finish the bathroom remodel before any more soldering! 😀
Best bang for the buck in my opinion. The reason I started using them is Nelson has stated he likes them.
dual pair VFETs p2
Any reply please , especially from Mr Pass:
Are the VFETs included in the kits suitable for building the dual pair version of the amp?
I have ordered 2 kits! can I use the VFETs to build the original version of the amp (dual pair VFET p2) ?
Many thanks and best regards
Any reply please , especially from Mr Pass:
Are the VFETs included in the kits suitable for building the dual pair version of the amp?
I have ordered 2 kits! can I use the VFETs to build the original version of the amp (dual pair VFET p2) ?
Many thanks and best regards
Thanks for the reply! Is that also correct if the VFETs in the 2 kits are not from "sequentially picked kits" and are only matched per kit?
If you were able to get one of the double kits taped together then they were picked sequentially.
Since a lot of people have various parts and don't need them, and others do, it's OK to mention on this thread if you have extra parts you want to trade or sell. Then go to PM to discuss the details.
I'll post my BOM in the next couple of days and I'll need you guys to look it over. It's to your advantage if you catch mistakes or have ideas to improve the spec. I agree that good quality parts for an amp this special, make sense. I also suspect that there will be a lot of interest because many people bought the VFET kits because it was the only opportunity, not because they were planning to start construction right away. Also as I mentioned the shipping should be quite reasonable. It appears that there will be enough VFET kits (The Essentials) for the remaining people on the list.
I'll post my BOM in the next couple of days and I'll need you guys to look it over. It's to your advantage if you catch mistakes or have ideas to improve the spec. I agree that good quality parts for an amp this special, make sense. I also suspect that there will be a lot of interest because many people bought the VFET kits because it was the only opportunity, not because they were planning to start construction right away. Also as I mentioned the shipping should be quite reasonable. It appears that there will be enough VFET kits (The Essentials) for the remaining people on the list.
Jason told me that my 2 kits are unfortunately not picked sequentially! Does it mean, they are not suitable for my reason?
I have contacted CircuitDiy today and they have stated that they have sold all their VFETs 2 months ago. They are still showing them as available on their website but when you try and add them to your cart nothing happens.
If you have only one polarity of VFETs, it is not difficult to design good
single-ended amplifiers in common source or common drain mode.
😎
single-ended amplifiers in common source or common drain mode.
😎
I'm trying to build my own 'one third' 40th Anniversary Sony VFET balanced, with 8 VFET's per channel instead of 24 😀 But bias them somewhat higher....
Does anybody know the thickness of the alu sheet holding the heatsinks?
Is it 10, 12 or 15 mm?
Thanks, Walter
Does anybody know the thickness of the alu sheet holding the heatsinks?
Is it 10, 12 or 15 mm?
Thanks, Walter
