2n5566音质

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www.farnell.com

Matched N-Channel JFET Pairs - Farnell

The 2N5564/5565/5566 are matched pairs of JFETs mounted in a TO-71 package. This two-chip design reduces parasitics for good performance at high frequency while ensuring extremely tight matching. This series features ...

www.diyaudio.com

2N5566 - diyAudio

Jun 18, 2016 · The 2N5566 is already a dual. NDP is the plastic package. I don't think you are looking at a substantial difference in capacitance. 😎