There is a very close equivalent to the NJW's( SOA, Hfe, package, Vce) It is the
2sc3263 / 2sa1294 by Sanken electric.
http://www.sanken-ele.co.jp/en/prod/semicon/pdf/2sc3263e.pdf
http://www.sanken-ele.co.jp/en/prod/semicon/pdf/2sa1294e.pdf
So close the amp can't tell (no Vbe re-adjustment)
PS - I get the NJW's for 2$usd apiece / 25 quan. You could have someone in the US order them and USPS to europe for $14usd flat rate.
OS
2sc3263 / 2sa1294 by Sanken electric.
http://www.sanken-ele.co.jp/en/prod/semicon/pdf/2sc3263e.pdf
http://www.sanken-ele.co.jp/en/prod/semicon/pdf/2sa1294e.pdf
So close the amp can't tell (no Vbe re-adjustment)
PS - I get the NJW's for 2$usd apiece / 25 quan. You could have someone in the US order them and USPS to europe for $14usd flat rate.
OS
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Sankens are 1-2 hfe difference P-N the 12 I have are also 1-2 Hfe as a group.
NJW's are also close 90+ for PNP 95+ for NPN. Whether you have to match them depends on your Re (emitter resistors). .22R is tolerant of 5+ beta mismatch .47R can do 10 beta mismatch to get below 1mv Re difference between devices.
I buy 25 each of P/N , group them by 4 or 8 P/N channel , making sure each "sex" is within 2-3 beta in the group. My finished amp reads
(P -17/17/16/17mv) and (N-17/18/17/17mv)... good enough for me.
OS
NJW's are also close 90+ for PNP 95+ for NPN. Whether you have to match them depends on your Re (emitter resistors). .22R is tolerant of 5+ beta mismatch .47R can do 10 beta mismatch to get below 1mv Re difference between devices.
I buy 25 each of P/N , group them by 4 or 8 P/N channel , making sure each "sex" is within 2-3 beta in the group. My finished amp reads
(P -17/17/16/17mv) and (N-17/18/17/17mv)... good enough for me.
OS
Well, speaking of which, I need to warn you people again regarding counterfeits on ebay. Here are some pics of fake MJL3281/MJL1302 I recently bought from a ebay seller from Hong Kong. Don't ask me why do I bother with ebay cuz it's something I can't explain . The worst part is that almost all transistors have a collector-emitter breakdown voltage around 195-200 Volts. I said almost cuz one had around 88V ! Then I decided to hammer this one and look....surprise! Am I shocked? No. That's the price when you mess around with unreliable ebay sellers. I'm still thinking about reporting this guy to ebay. Maybe he's also a victim of counterfeits? Well, that's all folks. Btw, here is also a pic of MJL3281 sample directly from ON Semi. The difference is obvious.
Fakes:
Genuine:
. The worst part is that almost all transistors have a collector-emitter breakdown voltage around 195-200 Volts. I said almost cuz one had around 88V ! Then I decided to hammer this one and look....surprise! Am I shocked? No. That's the price when you mess around with unreliable ebay sellers. I'm still thinking about reporting this guy to ebay. Maybe he's also a victim of counterfeits? Well, that's all folks. Btw, here is also a pic of MJL3281 sample directly from ON Semi. The difference is obvious. Fakes:
Genuine:
Yea, like we don't know that already. What a smart answer.
Well, at least you got some answer from the manufacturer. I wasn't that lucky. I've sent some pics of opened 2SC3298/2SA1306 transistors to Toshiba asking them to look at them and give me the final verdict. Of course, no answer from them. Maybe I've sent the email to a wrong person or they simply don't want to bother with such things, dunno. So much help from the manufacturer. 
Well, like you guys already mentioned, the best thing is to buy them from an authorized dealer like Digi-Key, Mouser, Farnell etc. The only problem is that they have overrated shipping costs! FFS I don't want to buy 10 transistors and pay $100 USD to FedEx for delivery! It's a rip off
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