FirstWatt J2

[Russellc]

yup , standard FW PSU , 2SJ109 being double 2SJ74 , as always

Thanks, hate to pirate them off my aleph J boards, time to hit up Spencer for some 2sj74. Is there a favoured idss for this, or standard between 7 and 8 range?

 

[Zen Mod]

BL yes
7-8mA Idss as minimum

 

[wdecho]

Thanks, hate to pirate them off my aleph J boards, time to hit up Spencer for some 2sj74. Is there a favoured idss for this, or standard between 7 and 8 range?

I've been using the stores LSK's. Work great, support the store.

 

[Russellc]

BL yes
7-8mA Idss as minimum

I have some higher, in the high 8 low 9 area, would they work as well? Or better?

Russellc

 

[Russellc]

I've been using the stores LSK's. Work great, support the store.

I am the last one anyone could accuse of not supporting the store, they have loads of my money!😀 I have inquired in a few posts whether or not they have idss to order, or if it is whatever you get, and never had a definitive response. Do you know? I have never asked Jason directly I dont think.

I have used lots of the Toshiba units, have some values on hand...I prefer Toshiba if available. The LS versions are said to be just as good, and I have a set of them on hand...never set up the works to measure, and BL spans quite wide...

Russellc

 

[Zen Mod]

I have some higher, in the high 8 low 9 area, would they work as well? Or better?

Russellc

being biased by CCS (up stairs) , they'll work superb

 

[fpitas]

Just because the schematic hasn't been released hasn't stopped somebody from making (and selling) a J2 clone: Semisouth Amplifier Firstwatt J2 Plus Questyle | eBay

 

[vdi_nenna]

Holy $#!+. Full on production!

 

[fpitas]

There are a lot of differences compared to the real McCoy, but it might fool somebody.

 

[labjr]

I wouldn't buy the amp. But I like the enclosure.

 

[wdecho]

Flagrant violations of decency and probably law. Even using descriptions straight of of Nelson's manual. Something should be done but I expect it would be hard to enforce.

 

[WBS]

This seller is a known rip off. The sale is an blatant example of the IP theft that is rampant in China, perpetrated by thieves who aren't even imaginative enough to compose their own description.

I won't be surprised to see a copy of a completed VFET 2 show up on ebay after the boards become available through the diy store.

 

[Zen Mod]

what have China with Thailand , in this case ?

 

[needtubes]

I won't be surprised to see a copy of a completed VFET 2 show up on ebay after the boards become available through the diy store.

Fairly sure I have seen such an amp listed on eBay not long ago. Same chassis as this fake J2.

 

[Zen Mod]

just take a look at other listings by same seller

 

[wdecho]

just take a look at other listings by same seller

Exactly. You will see where the Vfets went after the BAF and diyer's cannot get them anymore.

 

[massimo]

Last week somebody bought 16 pcs of 2SJ28 at 5 € (less than 6$) each 😱 from a small local
shop here in Italy. I arrived two days later! And most probably the same shop also had some 2SK82 too.
Never stop chasing them, they could be everywhere.

 

[Nelson Pass]

Just because the schematic hasn't been released hasn't stopped somebody from making (and selling) a J2 clone: Semisouth Amplifier Firstwatt J2 Plus Questyle | eBay

Isn't that our banned friend Anadigit?

😎

 

[vdi_nenna]

I won't be surprised to see a copy of a completed VFET 2 show up on ebay after the boards become available through the diy store.

I don't think they are waiting for the store to carry the boards.

Vfet Amplifier 2SK82 2SJ28 2SK170 2SJ74 Firstwatt Questyle | eBay

 

[fpitas]

Isn't that our banned friend Anadigit?

😎

Perhaps. At least he didn't sign your name on the front panel 😉