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Re: 2N2222A vs 2N3904 sourcing


 

For Pete and repete:

Known problems and this was as of mid June.? IF your not aware of this log in to the form web version and read.
History is amazing and repeated, repeated, repeated, repeated, repeated, repeated, repeated, repeated, repeated, repeated, repeated.

Amplifier power vs frequency is poor.
IMD extremely poor for power over 2W.

Output Low pass filters, they don't. board layout.

Spurs, unwanted and unfiltered mix products that show above 20mhz.
Band pass filter after the mixers not existant.??

Carrier leakage that is not related to modulator or 12mhz filter.? Again board layout.

Nothing new here.

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