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High gain BJTs

Started by PurpleTheory, March 10, 2005, 08:40:00 PM

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PurpleTheory

March 10, 2005, 08:40:00 PM
I just was wondering what would be considered high gain BJTs, sorry if it's an extremely newb question.  :oops:

Thanks,

Matt

petemoore

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#1
March 10, 2005, 10:03:37 PM
EZ answer? 2n5089 or MPSA18
 Darlington...[i Think that's MPSA13...NTE makes one too]
 Darlington made from 2x 2n5089's [don't know about starting with lower gain Q's to build Darlingtransistor]
 2n5088 are also pretty high gain
Convention creates following, following creates convention.

R.G.

#2
March 10, 2005, 10:18:40 PM
hfe over 300
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

PurpleTheory

#3
March 10, 2005, 10:54:43 PM
Cool, thanks!

Matt
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