Wtb: 2sj74-bl

fritz39 · 25th September 2009, 07:18 PM

I accidentally bought the GR version and need the BL. I only need a few and I'm going broke paying all the minimum buys and shipping costs

Any kind souls out there that could spare 4 parts for a reasonable price?

My F5 build is waiting for this one part. I could also trade some of the GR
versions if that helps.

Thanks.

cowboy99 · 9th October 2009, 01:27 AM

Sure, if your still looking. I've got more than I'll ever use. Assume you'd want a matched quad, I've got several quads matched up using my new(to me) curve tracer. Not interested in -GR's, but will price as 'favor'; not really selling these my stash is more 'extinction prevention'.
Charles PM me

fritz39 · 9th October 2009, 02:35 PM

I went ahead and bought some already, but thanks for the offer. If I blow
them all up I may look you up again.

Sunsun22 · 8th December 2009, 02:46 PM

Hi, I need some 2sJ74GR. How many do you have? Will you sell them to me?

Sunsun22 · 8th December 2009, 02:48 PM

Hi Cowboy99, I need some 2SJ74BL too. May I know where did you buy them and how many can you sell? At what price?

ticknpop · 3rd January 2010, 01:08 AM

Try bdent they have bl and gr

jackinnj · 3rd January 2010, 01:20 AM

Quote:

Originally Posted by fritz39

I accidentally bought the GR version and need the BL. I only need a few and I'm going broke paying all the minimum buys and shipping costs

Any kind souls out there that could spare 4 parts for a reasonable price?

My F5 build is waiting for this one part. I could also trade some of the GR
versions if that helps.

Thanks.

You can make an F5 work with GR values -- I built one with a P-channel device with Idss in the 3's and an N-channel device n the 11's.

Renron · 3rd January 2010, 09:08 PM

Quote:

Originally Posted by jackinnj

You can make an F5 work with GR values -- I built one with a P-channel device with Idss in the 3's and an N-channel device n the 11's.

Hey Jackinnj. I made the same mistake after blowing up the first set you sold me...bought the GR as replacements for the BLs. Can only turn up the voltage to ~2.1 while adjusting the pots..... What should I do to make the GRs work?

Ron

jackinnj · 4th January 2010, 01:56 PM

It worked over a very restricted portion of the potentiometer's travel.

I'll solder up a single-ended version this afternoon -- the value of the 2.2K resistor will have to be changed -- NP referred to this in the original article.

I had thought that LinearSys would have had their P-Channel JFET out by now.

Steve Eddy · 4th January 2010, 03:31 PM

Quote:

Originally Posted by jackinnj

I'll solder up a single-ended version this afternoon -- the value of the 2.2K resistor will have to be changed -- NP referred to this in the original article.

Which article was that? Or are you referring to the F5's owner/service manual?

Also, in this case, R1 and R2 had been changed from 10 ohms to 22 ohms.

Quote:

I had thought that LinearSys would have had their P-Channel JFET out by now.

Been waiting on that for what, three of four years now?

se

25th September 2009, 07:18 PM	#1
fritz39 diyAudio Member Join Date: Mar 2008 Location: Maple Valley, WA	Wtb: 2sj74-bl I accidentally bought the GR version and need the BL. I only need a few and I'm going broke paying all the minimum buys and shipping costs Any kind souls out there that could spare 4 parts for a reasonable price? My F5 build is waiting for this one part. I could also trade some of the GR versions if that helps. Thanks.

9th October 2009, 01:27 AM	#2
cowboy99 diyAudio Member Join Date: Dec 2008 Location: Texas Hill Country, SSW of Austin	Toshiba 2SJ74-BL Sure, if your still looking. I've got more than I'll ever use. Assume you'd want a matched quad, I've got several quads matched up using my new(to me) curve tracer. Not interested in -GR's, but will price as 'favor'; not really selling these my stash is more 'extinction prevention'. Charles PM me __________________ I'm kinda curious about that myself........

9th October 2009, 02:35 PM	#3
fritz39 diyAudio Member Join Date: Mar 2008 Location: Maple Valley, WA	Thanks for the offer. I went ahead and bought some already, but thanks for the offer. If I blow them all up I may look you up again.

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8th December 2009, 02:46 PM	#4
Sunsun22 diyAudio Member Join Date: Jul 2004 Location: Hong Kong	Hi, I need some 2sJ74GR. How many do you have? Will you sell them to me?

8th December 2009, 02:48 PM	#5
Sunsun22 diyAudio Member Join Date: Jul 2004 Location: Hong Kong	Hi Cowboy99, I need some 2SJ74BL too. May I know where did you buy them and how many can you sell? At what price?

3rd January 2010, 01:08 AM	#6
ticknpop diyAudio Member Join Date: May 2005 Location: toronto	Try bdent they have bl and gr

4th January 2010, 01:56 PM	#9
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	It worked over a very restricted portion of the potentiometer's travel. I'll solder up a single-ended version this afternoon -- the value of the 2.2K resistor will have to be changed -- NP referred to this in the original article. I had thought that LinearSys would have had their P-Channel JFET out by now.

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