BD139, BD140 - which brand?

lordearl · 03:06 AM

I notice STIMicro, Multicomp, ON Semi and Fairchild all currently manufacture these transistors - which is preferable for a headphone amp?

amc184 · 17th April 2010, 03:19 AM

ST, ON and Fairchild should all be okay. Multicomp is not actually a brand at all, it's the label under which Farnell sells generic, no-brand stuff. For semiconductors in critical places, I'd avoid Multicomp.

Pressed to make a choice, I'd go with ON.

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17th April 2010, 03:19 AM	#2
amc184 diyAudio Member Join Date: May 2007 Location: Christchurch	ST, ON and Fairchild should all be okay. Multicomp is not actually a brand at all, it's the label under which Farnell sells generic, no-brand stuff. For semiconductors in critical places, I'd avoid Multicomp. Pressed to make a choice, I'd go with ON.

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