Electronics > Projects, Designs, and Technical Stuff

RF PNP transistor

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T3sl4co1l:
Phil Hobbs is fond of cascoding two of them, afraid I forget which though.  One of them has awful Early effect (or the FET equivalent), so that goes on the bottom; the other doesn't, but has awful low frequency noise, so goes on the top.  Yes, the layout must be tight and usually demands a small ferrite bead on the base/gate, which must be carefully chosen since you still want some high frequencies, not just lower ones.

Tim

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