2SK135 2SJ50 Replacement - diyAudio
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Old 4th September 2003, 12:10 PM   #1
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Question 2SK135 2SJ50 Replacement

I just Received a Trace Elliot PA1200
Boards from a friend who has ripped them out
of his amp after blowing it

This Amp is a verry impressive Pa Amp and
I would like to Revive it!

the only problem is It uses 2SK135 & 2SJ50
Outputs and I can't find these anywhere

Are there equivalents that I can Use?

Here are Attached Pics
Attached Images
File Type: jpg trace-top.jpg (33.5 KB, 1514 views)
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Old 4th September 2003, 12:21 PM   #2
UrSv is offline UrSv  Sweden
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http://home.swipnet.se/~w-50719/forsale/index.html
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Old 4th September 2003, 12:48 PM   #3
matth is offline matth  United Kingdom
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The UK based company Profusion sells there own brand of lateral mosfets (Exicon) and has equivalents for the 2SK135 and 2SJ50:
http://www.exicon.com
I have deal with Profusion in the past for small numbers and I can not recommend them highly enough.
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Old 4th September 2003, 12:49 PM   #4
StuartH is offline StuartH  South Africa
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Hi Marvellous

I asked a similar question some time ago. The Exicon parts seem to be about the closest youll get.

http://www.profusionplc.com/hitachi.htm

No idea where to get these in SA. I have tried without success.

One could always replace them with something significantly better, as the 2SK135 and 2SJ50 are pretty old. I dont remember if IR makes a IRFP240/9240 equivalent in a metal can package.

Any suggestions out there???

Cheers, Stuart
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Old 4th September 2003, 12:55 PM   #5
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Default Mosfets

RS components still stock the 2SK135 and 2SJ50 although these are not made by Hitachi anymore. Hope this helps.

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Old 4th September 2003, 01:03 PM   #6
StuartH is offline StuartH  South Africa
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Hi diyman

Thanks. Didnt realise RS would have them. I dont tend to use RS as here in SA they are HMMMMM expensive.

Stuart
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Old 4th September 2003, 01:50 PM   #7
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I'll be happy to sell a couple of those Hitachi's. My are original and in it's original box. Very Hitachi in other words.
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Old 5th September 2003, 08:48 AM   #8
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Have just Email you Preanders! Price?

Some one has just told me that I can use
2SJ162 2SK1058 as replacement?

is this true?
as these are not TO3
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Old 5th September 2003, 09:06 AM   #9
Electrons are yellow and more is better!
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Quote:
Originally posted by Marvellous
Have just Email you Preanders! Price?

Some one has just told me that I can use
2SJ162 2SK1058 as replacement?

is this true?
as these are not TO3
Those are not TO3 but fits if it's not too tight. The electrical properties are similar but not exact. The threshold voltage is higher for instance. In many places you can use them but in some designs you have to adjust a little, especially the bias arrangements.
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Old 5th September 2003, 11:43 AM   #10
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Quote:
Those are not TO3 but fits if it's not too tight.
I don't understand what you mean?
do you mean they will work but will not give same power?
or they will work but wont get same quality?
or they might not work at all?

peranders got your email Thax!
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