2SK135 2SJ50 Replacement

Marvellous · 4th September 2003, 11:10 AM

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

UrSv · 4th September 2003, 11:21 AM

http://home.swipnet.se/~w-50719/forsale/index.html

matth · 4th September 2003, 11:48 AM

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.

StuartH · 4th September 2003, 11:49 AM

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

diyman · 4th September 2003, 11:55 AM

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

StuartH · 4th September 2003, 12:03 PM

Hi diyman

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

Stuart

peranders · 4th September 2003, 12:50 PM

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.

Marvellous · 5th September 2003, 07:48 AM

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

peranders · 5th September 2003, 08:06 AM

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.

Marvellous · 5th September 2003, 10:43 AM

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!

4th September 2003, 11:21 AM	#2
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	http://home.swipnet.se/~w-50719/forsale/index.html __________________ UrSv Those who say it can't be done should not stop those who are doing it.

4th September 2003, 11:55 AM	#5
diyman diyAudio Member Join Date: Nov 2001 Location: Malaysia	Mosfets RS components still stock the 2SK135 and 2SJ50 although these are not made by Hitachi anymore. Hope this helps.

4th September 2003, 12:50 PM	#7
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	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. __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

5th September 2003, 07:48 AM	#8
Marvellous diyAudio Member Join Date: Aug 2003 Location: Gauteng	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 __________________ "When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute—and it’s longer than any hour. That’s relativity." - Albert E

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4th September 2003, 11:48 AM	#3
matth diyAudio Member Join Date: Jun 2003 Location: Bristol	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.

4th September 2003, 11:49 AM	#4
StuartH diyAudio Member Join Date: May 2003 Location: Johannesburg	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

4th September 2003, 12:03 PM	#6
StuartH diyAudio Member Join Date: May 2003 Location: Johannesburg	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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