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2n4125 sub for Phase 90

Started by blues123, May 20, 2006, 11:16:42 AM

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blues123

May 20, 2006, 11:16:42 AM
Hi,

Can anyone suggest a sub/equivalent for the 2n4125 used in the Phase 90. Would another general purpose pnp like 2n3906 be OK?

Thanks

blues123

#1
May 21, 2006, 12:33:40 PM
Anybody?

R.G.

#2
May 21, 2006, 02:40:36 PM
A 2N3906 will do nicely.

You can also use a 2N4250, 2N5087, and many others. This is one of those places where almost any small signal PNPs with a gain over 200 will work.
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.

blues123

#3
May 21, 2006, 02:57:57 PM
R.G.

Thanks for putting my mind at rest. I now have no reason not to start (got loads of 2n3906's).

You people are great, I'm sure I wouldn't have got this far without this fantastic forum. Thanks again....

rasco22862

#4
April 11, 2007, 09:26:27 PM
they have different pinout right?

2n4125 -CBE
2n3906 -EBC

R.G.

#5
April 11, 2007, 11:24:12 PM
Quotethey have different pinout right?
Don't know. And it doesn't matter.

No one who knows what they're doing would ever think of putting in a new device without going and finding out what the exact pinout is first.

... er, unless they had a lot of spares to try with. :icon_biggrin:
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.

rasco22862

#6
April 12, 2007, 12:11:03 PM
yes y checked out, but wanna be sure? :P
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