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Old 19th December 2012, 10:03 PM   #1
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Default Source or replacement for 2SA968/2SA2238 ?

Hi,

I have friends Yamaha M-4 on my desk for repair with burned driver and output transistors on one channel. Of course, all of them are now obsolete. I managed to acquire some replacements for the output transistors but have nothing for the driver pair 2SA968/2SA2238.
I have RS and Farnell distributors in a place where I live, but I didn't manage to find anything on their stock that could be useful in my case.
Found some that are sold on ebay though, but I I think there is a great chance of them being chinese fakes, so I would like to avoid those and find some source that is more reliable.

Does anyone have an idea on this ?
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Old 19th December 2012, 11:05 PM   #2
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Avoid exotic fakes and go for serious european replacements. Maybe not so low-noise or high FT, but reliable and good soundind, especially in a global feedback environment. Pinout is different and that is difficult to replace. But in a GFB circuit, you can use 2sc1315, general purpose and a big affordable replacement with a REAL good sound. I know many specialists using FAKES, they are moanin' in a orgasm for those bjt, just poor written characters on a plastic case...
Let me know.
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Old 19th December 2012, 11:24 PM   #3
wahab is offline wahab  Algeria
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2SA1837 2SC4793
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Old 19th December 2012, 11:58 PM   #4
jaycee is offline jaycee  United Kingdom
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Agreed, use the newer 2SA1837/2SC4793 pair. You are likely to get fakes of the A968/C2238 pairs
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Old 20th December 2012, 01:12 AM   #5
bluevas is offline bluevas  Indonesia
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TOSHIBA 2SA1360 2SC3423
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Old 20th December 2012, 05:03 AM   #6
neychi is offline neychi  Croatia
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Sanyo 2sa1011/2sc2344
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Old 20th December 2012, 06:53 AM   #7
wahab is offline wahab  Algeria
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TOSHIBA 2SA1360 2SC3423
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Old 20th December 2012, 09:33 AM   #8
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TOSHIBA 2SA1360 2SC3423
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Old 20th December 2012, 09:48 AM   #9
Telstar is offline Telstar  Italy
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Quote:
Originally Posted by jaycee View Post
You are likely to get fakes of the A968/C2238 pairs
CDIL makes them in India (dunno their quality). Magnatec in europe used to make them and I have a few pairs which seems ok.

Newer toshiba replacements should be ok in your application.
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Old 20th December 2012, 10:30 AM   #10
sajti is offline sajti  Hungary
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2SC5171/2SA1930 from Mouser.

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