Mutagen

Kroars

Well-known member
Super easy build, sounds great. Apparently Basic Audios version of the 1960’s Os Mutantes Fuzz, this pedal covers some interesting territory. Originally socketed BC549B’s as per build docs, and it sounded good but seemed to have a ton of high end. After auditioning a few different sets I settled on 3 2n3565’s around 420 hfe for all. Knocked down the highs a tad and sounds great to me.
 

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I'd been hoping someone would post a build report for this soon! 2n3565s sound like a great choice. Were those BC549b similar in terms of hfe? I notice Basic Audio uses those in a lot of their circuits.
 
I'd been hoping someone would post a build report for this soon! 2n3565s sound like a great choice. Were those BC549b similar in terms of hfe? I notice Basic Audio uses those in a lot of their circuits.
The bc549b’s I have are between 300-500 and the 2n3565’s are around 120-450 if I remember correctly.
 
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