I need a couple of the Toshiba 2SA1306 driver transistors. Does anyone have a source to purchase them from?
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Does anyone have a source for some Toshiba 2SA1306 transistors?
- Thread starter jefferylhenr
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I found some new old stock from a reputable supplier for the complimentary 2SC3298. It’s the drivers for a Sansui a907. Was hoping to keep it original. But, yes I am aware of fakes.
I have had bad luck with recently with the onsemi 32/33. 940/2073? I have the 1837/2SC4793 pairs but they don’t appear to be as robust and not sure about the curves. I do have the 4 pairs of originals which test within spec but the outputs shorted and that always gets me concerned and wanted to replace. I am not familiar with the kta1695’s.
KTA1659A and KTC4370A
I recently learned of these transistors after finding from a post by FootFungus in this thread: https://audiokarma.org/forums/index.php?threads/2sa1306-2sc3298-replacements-required-no-dice.1010845/#post-15965749 They look very promising as a driver replacement so I ordered 50 of each of them...
audiokarma.org
felix_katze
Well-Known Member
NOS here in Japan for around $20/pair plus postage. So I'd guess $30-40.
The KTA devices are great, nearly the same as the Toshiba devices, the Toshiba having slightly better SOA at higher voltages.
I have plenty of both the KEC and Toshiba, the 2SA1306 I have are the “B” variant which are just higher voltage. From what I understand KEC worked with Onsemi to make many of their semiconductors.
Dan
I have plenty of both the KEC and Toshiba, the 2SA1306 I have are the “B” variant which are just higher voltage. From what I understand KEC worked with Onsemi to make many of their semiconductors.
Dan
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The official Toshiba replacement for 2sa1306 is 2sa1943. The 2sa1943 is still made and available.
Edit: I stand corrected. I was looking at the 1302 not the 1306
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Unless I’m confusing something the 2SA1306 is a TO220 generally used to drive outputs, has a very high Ft and lower cob which makes it quite desirable. The 2SA1943 is a TO264 used as the output stage. A nice device, similar to the MJL0302.
Dan
I stand corrected. I was looking at the 1302 vs the 1306
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shiva12
New Member
Hi Jeffry!
I have plenty of those.
If you still need them send me PM with address and I will ship some.
They are mostly ex-equipment, but all I have used so far have been fine. (I will test before shipping)
morten
HumbleDeer
New Member
The 2SK135/2SJ50 were lateral mosfets. They aren't directly comparable to the BJT's mentioned above.
