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Old 14th June 2012, 02:06 PM   #261
sonidos is offline sonidos  United States
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Originally Posted by jackinnj View Post
I thought I had posted this -- 2N5460 is available from Mouser. They have a couple hundred in stock.
I missed that, thanks! Well, on the other jfet I guess I go for the Chinese jfets and cross my fingers!
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Old 14th June 2012, 05:28 PM   #262
sonidos is offline sonidos  United States
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Update: I just purchased the 2n2547 jfets from Tayda2009 on ebay, since they have a good rep. After I get all the parts in, I'll report if I had any problems with matching or Idss.
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Old 15th June 2012, 04:25 AM   #263
rjm is offline rjm  Japan
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Originally Posted by coluke View Post
open loop performances of the DB-CM-DB architecture are quite amazing
Under simulation at any rate, my results bear this out 100%.
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Old 15th June 2012, 05:08 PM   #264
RNMarsh is online now RNMarsh  United States
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Originally Posted by sonidos View Post
Update: I just purchased the 2n2547 jfets from Tayda2009 on ebay, since they have a good rep. After I get all the parts in, I'll report if I had any problems with matching or Idss.
Is there a compliment to the 2N2547?
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Old 15th June 2012, 05:12 PM   #265
RNMarsh is online now RNMarsh  United States
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Under simulation at any rate, my results bear this out 100%.
There is some gain there... Not optimized... should have lower distortion. Remove R6 and then it will be open-loop and then retest.
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Old 15th June 2012, 05:54 PM   #266
Telstar is offline Telstar  Italy
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Is there a compliment to the 2N2547?
psst... Complement. You do this mistake in the article too.
Jan, note it for reprint
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Old 15th June 2012, 05:59 PM   #267
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Old 15th June 2012, 06:10 PM   #268
sonidos is offline sonidos  United States
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Originally Posted by RNMarsh View Post
Is there a compliment to the 2N2547?
It must be the day for typos. I meant 2N5457.
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Old 15th June 2012, 11:20 PM   #269
coluke is offline coluke  Italy
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It seems that NTE457/NTE460 by NTE Electronics are equivalent to 2N5457/2N5460 - Newark has a few of them in stock.

L.
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Old 16th June 2012, 12:44 AM   #270
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Lots of devices will work on the front end -- but be mindful of the pinouts! I will try on Sunday. I have some sk170gr/j74gr matched up.
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