Looking for 2sb681 + 2sd551 (or analog)

[LinuxGuru]

Hi !

I have broken Sansui G8700DB, and now looking for 2sb681 + 2sd551 transistors (originally Toshiba, but any other respectable company like On Semi is also OK).
I seen them on sale on eBay, and they look like counterfeit. I cannot state it is as fact, but somethings look really suspicious. For example, on original transistors "Toshiba" logo printed in curved italic, on those for sale on eBay - just in plain text. I'm in doubt Toshiba have decided to change logo style, but who really knows ??
Any good and reasonably priced source in Europe is OK. If anyone can suggest analogs in TO3 case, I would be very grateful. 2sb681 / 2sd551 seem to be discontinued, but I do not know substitution part #.

Thanks in advance for any suggestion(s).

 

[glen65]

Go here..
http://www.audiokarma.org/forums/showthread.php?t=328266

 

[kevzep]

From Echowars...............Transistors aren't tubes, and characteristics are much less important (generally speaking) to the final sound.

Not a truer word spoken, I have used these devices in a AU-999 and a Model 3000A..............
They are also used in the Crown amplifiers which you see in my signature, which are professional amps producing 2500watts per channel into 2 ohms........

Very common output transistors.

Just get the MJ's and slap them in and bias it up...........

Make sure the diver transistors are okay too before you proceed.

You can also use MJ15025/15023 complimentary pairs too..........