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decent, low or moderate cost home brew RF amp?
Being out of ham for nearly 20 years, I am recently getting back involved on
HF voice (10-80 meters). I have a small 2 watt QRP SSB rig that I would like to boost up to at least 100 W PEP in the mobile. What amps are available accepting low drive on HF for 100 w output? How about schematics or plans? Thank you, John |
decent, low or moderate cost home brew RF amp?
On Oct 23, 3:30*pm, "John Cooper" wrote:
Being out of ham for nearly 20 years, I am recently getting back involved on HF voice (10-80 meters). *I have a small 2 watt QRP SSB rig that I would like to boost up to at least 100 W PEP in the mobile. *What amps are available accepting low drive on HF for 100 w output? *How about schematics or plans? *Thank you, John Hey OT: Try this Indian ham his web page for an amp is he http://www.foxdelta.com/products/rfamp.htm#mrf He notes in other links that it comes from a clone mod of K7ES's ARRL 1981-3 handbook amp using MRF454's His amp uses MRF455's, which the spec says they gots 13 db power gain. meaning 3 watts in 60 watts on paper. albiet he uses push pull, so I recall somewhere he gets 5 watts in 100 watts out in the real world. 73 OM de n8zu |
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