I want to know how to build an amateur radio amplifier for the HF bands
Easy to build HF QRP Amplifier: http://timelesson.blogspot.com/2010/06/6n7-tube-qrp-power-amplifier-one-rainy.html
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When someone asked about an amplifier, I deduced that he already got his license - Pirates usually asked about "Transmitter", not amplifier. I plan to post an instructable about my simple 300w grounded grid amplifier later, but right now I can offer one of articles from my (very new) blog: timelesson.blogspot.com/2009/12/there-was-book-of-books-in-early-1970s.html 3xGU-50 amplifier from this article you can see on the photos. Hand-made in 1987 :-)
Just a quick question. Are you looking for an amplifier to increase transmit power or an amplifier for receiving signals (RF preamplifier)?
Get your Ham License First and all will be revealed.
The test has gotten to be very easy.
Get the "Gordon West Technician Handbook" order it through Radio Shack.
35 multi guess questions. Read book through 5 times and only the right
Then call ARRL @ 1-888-277-5289 and ask for V.E.C. License Info for your
area. Take EASY test. Pass it and all will be revealed.
Have you got a licence ?