Old  technique
Capacitors homebrew
Coils homebrew
Type tags homebrew
Knobs homebrew
Crystal set 2005
Crystal set 2006-measurements
Crystal set 2006
Batterij wraps

HAM stuff
APRS
SSTV
Background noise measure
Weathersat

VHF/UHF station setup
 

My Projects
Nixie freq.counter
2mtr amp with tube
FT817 portable antenne
FT817 "buddipole" clone
Regenerative audion

The "Toroidyne"
1929 CW transmitter
Loop antenna
144Mhz 300Watt amplifier
2SA13, 144Mhz beam
Filter design
ATF54143 LNA
1Ghz VSWR bridge
PEP power meter
Glowbugs

My book shelf

Info

IARU VHF handbooks

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other things