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previous: peter J202 fets ? -- 6/2/2000 1:23 PM view thread

Re:J201- J202 fets ?

6/2/2000 6:13 PM
Eric H
Re:J201- J202 fets ?
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quote:
"I just bought a bleusbreakerII, and I love it...really nice pedal, especially in boost mode.  
 
The second thing I did was open it up to see what's inside and I noticed two J202 transistors..or fets..or whatever they may be.  
Does this thing belong in the same family as the fets used in the miniboosters and sweet things ?"
 
 
VERY interesting, Peter, I took a look at my Interfet data-sheet for the J201, and specs for the J202 are in there also --your suspician was correct:  
http://www.interfet.com/pdf/DS_J201_2.pdf  
 
These have a higher idss, and higher transconductance. Considering that the original Bluesbreaker was opamp-based, I wonder where they got the idea for those? I wonder if they're just part of the switching-circuit --did you see any opamps in there (black rectangle about 3/8" by 3/4")?  
 
-Eric

 
Replies:
peter Yes, there is an opamp in there, it... -- 6/3/2000 10:12 AM