Re: boosting the power on 28 MHz #ubitx
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See the posts in the 3/21-3/31 date range (look for “RD16HHF1 power curve flattening”)… We’ve been through this. There were SPICE simulations, changes to all of the RF stages (bypass caps), including changing out T11 including various tries at compensating for excess inductance at HF with parallel C, different feedback resistors and caps. RD16HHF1 transistors for IFR510’s, PA voltage is 14V.
Sorry for the terse answer, I’m trying to finish a prototype line section before I leave for Dayton.
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From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
When you see 26 and 19 Watts, what exactly are you looking at?