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@@ -4,3 +4,7 @@ An experiment about push-pull amplifiers
 With MMRF1021NT1 / AFT09MS007NT1 devices, because I happen to have a few.
 
 Goal: learn something
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+For HF experiments, use the 2N3904 preamp.
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+For VHF experiments, there's a footprint for an MMIC.