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krell ksa5 klone

kevin gilmore

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KSA-5 design is not particularly demanding on transistors, as lots of local feedback (aka degeneration) and the low impedances tend to even things out. Pretty much anything with the correct pinout (base in the middle, unless you want to carefully bend them) and with the rated Vce of 45V or higher should work fine. It might make sense to match the paralleled and differential-pair transistors, but even that is just gilding the lily.

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