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20m Projects - Amplifiers

Click to enlarge25 watt linear for Dual bands (40/20) by VU2ESE
Homebrewers usually limit themselves to 5 watts or less. Frequently, there is a need to increase the power beyond those few watts. Described is a very simple, very stable amplifier that will provide 25 watts on any two HF bands. It takes a few evenings to be put together. Most of the parts are already in your junk box.
http://hfsignals.blogspot.com/p/25-watt-linear-for-40-and-20.html

Click to enlargeMiniboots by NB6M
Requests for an “outboard” version of the RF power amplifier used in the 5 Watt Mod for the SMK-1 led me to further research and experimentation which resulted in the amplifier circuit described in my article “A Mosfet QRP Gallon”, published in the Fall, 2000 issue of QRPp, the journal of the NorCal QRP Club.
http://www.norcalqrp.org/nb6mminiboots.htm

Creation date : 27/03/2020 @ 13:39
Last update : 12/12/2020 @ 19:35
Category : 20m Projects
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