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BASIC LINEAR AMPLIFIERS by SM0VPO edit / delete
Good overview of basic linear amp design.
to amplifier electronics radio ... on 04 February 2011
Build a 1000 MHz RF Spectrum Analyzer Inexpensively edit / delete
... and even more careful plumbing!
to electronics microwave radio test-equipment uhf vhf ... on 04 February 2011
Homebrew RF Test Equipment and Software edit / delete
Much of which is of the careful-plumbing variety. Neat stuff. Includes a spectrum analyser built from a VCR tuner, which is what I was originally after.
to electronics microwave radio test-equipment tuner uhf vhf ... on 04 February 2011
Handy list of the PDFs available on the ARRL website, courtesy of the Wayback Machine.
to arrl electronics etext ham radio ... on 31 January 2011
Genesis G59 Software Defined Radio Transceiver SDR QRP edit / delete
Power amp with integrated low pass filters.
WW2R Radio Web page edit / delete
Doing interesting stuff on the really high bands -- in particular, repurposing commercial amplifiers.
to electronics ham microwave radio uhf vhf ... on 30 January 2011
Lots of random electronics: radio, including an unusual loop antenna; simple computer designs; why ECL should have beaten TTL; and various other bits.
to antenna computer ecl electronics loop radio retrocomputing retrotech ttl ... on 30 January 2011
Thought I'd bookmarked this before -- hm. Good stuff on antenna tuners and feedlines.
to antenna electronics ham radio ... on 30 January 2011
Spotting meteors by listening for reflections from a French radar system in the UK.
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tasty by Adam Sampson.