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DIY Stompboxes => Building your own stompbox => Topic started by: wkrbee on May 16, 2006, 02:09:38 PM

Title: Insanity box FETs
Post by: wkrbee on May 16, 2006, 02:09:38 PM
Could I get some substitute numbers for the FETs used in the Insanity box?What other FEts will work in the insanity box
Title: Re: Insanity box FETs
Post by: puretube on November 08, 2006, 04:57:40 AM
welcome (late) to the forum, wkrbee,
and a "bump" for you!

:icon_smile:
Title: Re: Insanity box FETs
Post by: MartyMart on November 08, 2006, 05:30:13 AM
MPF102 or 2N5457 will work almost as well as J201 , MPF102 is slightly lower gain.

MM.
Title: Re: Insanity box FETs
Post by: amz-fx on November 08, 2006, 06:32:01 AM
95% of the sound change will come when you sub the lower jfet...  forget about the top one, especially in this circuit.  Just drop in any n-fet and see how you like the sound...  2N3819, 2N5457, J201, 2SK170, BF245, etc. etc.

regards, Jack
Title: Re: Insanity box FETs
Post by: aron on November 08, 2006, 01:27:29 PM
In the DIY Faq there's a list of FET substitutions for the J201, there's a long list.

http://www.diystompboxes.com/wiki/index.php?title=DIY_FAQ#TRANSISTORS