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Re: [Bitx40] tests on 20 meters rx

 

I've done some more upgrades to the 45W HF? ($14) Ebay amp, knocking off about a dozen parts and improving the purity overall . I figure the XL primary of the final balun is not matched to the parasitics of the push pull FETs and that's messing with the lower HF purity. Check the logs on the hackaday link in the last msg for the mods and improvements.

Here is the progress so far:


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AncelB, MIT EE6002
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