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Old 14th March 2011, 05:17 AM   #1
tony Ma is offline tony Ma  United States
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Join Date: Feb 2011
Default B&K ST140 Power AMP

Today suddenly one of channel on my power amp went bad
I believe using it says Japan K135 6L3 and Japan J50 6K1
Is it the same with 2sK135 and 2sJ50?

what is the replacement for it? I tried ebay no luck
Also I did search on this forum many replacement but make me confuse
Can some one suggest me which one is the best?

O yeah the POWER AMP is B&K ST-140 and I am located in US
Maybe I can buy locally here

tks
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Old 14th March 2011, 08:20 PM   #2
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hard to tell from the blurred schematic I have

looks to be SK135

and SK68 or SK6B - but that could be a fuzzy SK50
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Old 14th March 2011, 11:23 PM   #3
mlloyd1 is offline mlloyd1  United States
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Location: illinois
yes, same parts:
2SK135 and 2SJ50
the 6XX is date or batch code info.

mlloyd1

Quote:
Originally Posted by tony Ma View Post
Today suddenly one of channel on my power amp went bad
I believe using it says Japan K135 6L3 and Japan J50 6K1
Is it the same with 2sK135 and 2sJ50?

what is the replacement for it? I tried ebay no luck
Also I did search on this forum many replacement but make me confuse
Can some one suggest me which one is the best?

O yeah the POWER AMP is B&K ST-140 and I am located in US
Maybe I can buy locally here

tks
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Old 15th March 2011, 02:30 PM   #4
tony Ma is offline tony Ma  United States
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Join Date: Feb 2011
Finally i got some one in England that has exact things
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