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The 2sb has a higher voltage rating, and the is rated at higher current. Dr TinearJul 29, RuxmanAug 4, Please identify the amp model, so this thread will be useful to future readers. Is it likely that any of these could be causing a high dc-offset?

Yes, 2s688 password is: Or is this caused by another part in the circuit? IMO the 2sb and 2sd would probably be the best sounding if you could get the original Toshiba parts – most are now made in China and vary in quality and reliability. 2ssb688

That’s enough increase in speed to provoke HF instability in some amp circuits, so the repair definitely should be checked for parasitic oscillation. Log in or Sign up. In stock at mouser. If I try anyway, do you still think that maybe the DC offset would be improved?


But I have no way of making sure they are matched. I do intend to recap it, but I just datasheeh want to have any false hope over this getting fixed by that. I’ve looked at the schematic several times before but did not find anything that I could understand that well.

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RuxmanJul 29, It arrived today, and now the amp works again. Any help would be really appreciated! I have taken out the Datwsheet on the blown channel and everything is shorted. Do you already have an account? However, the DC offset is very high. Some are probably very.

HyperionAug 4, A recap, for example, won’t help at all? This is very educational and fun for me. TIP33 and 34 are still available – should use the “C” version v. I can find these, but I do not know if they’re a good replacement.

I do not really understand how to find comparable devices, so I would really, really appreciate some guidance on this. If anybody is interested, here’s a schematic of the amp GIF, kB. Also, a small 1uF cap had exploded on this channel. Those are about as vatasheet as you can get. Maybe that is why it has been smoked?

Share This Page Tweet. There are no adjustment points for DC offset in this amp.


2SB Datasheet(PDF) – Savantic, Inc.

That confirms that the TIPs are not original! And finally, 2SC or 2SC Thanks a lot for the help! Without dataheet info it’s hard to say what was original. And then there are three more, I have not looked at them because they are hard to reach, but according to the schematic they are either: The original output transistors were TIP34B, and I need replacements but they seem to be impossible to find. I guess I’m going to have to go with those, but I’ve gotten the impression that they are not entirely suitable.

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【2SD718/2SB688 TOSHIBA】Electronic Components In Stock Suppliers in 2018【Price】【Datasheet PDF】USA

How do you get matched pairs of transistors normally? I have an amp with a blown channel. So I take it that these two transistors are the only thing that is relevant for the dc offset?

BinaryMikeJul 29, I do intend to get the proper transistors soon, this was just a test. Now, with your insight, I looked again and found something of great interest! Can be found at most electronic distributors.

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