Old technique
Capacitors homebrew
Coils homebrew
Type tags homebrew
Knobs homebrew
Batterij wraps
Crystal radio
Crystal set 2005
Crystal set 2006-measurements
Crystal set 2006
Crystal
radio 2019
My first
X-tal set
The "Toroidyne"
Diodes
Speakers
Audio transformers
Toroid
measurements
HAM stuff
APRS
SSTV
Background noise measure
Weathersat
VHF/UHF station
setup
144Mhz Log files
My Projects
Nixie freq.counter
BATC Portsdown DATV
2mtr amp with tube
FT817 portable antenne
FT817 "buddipole" clone
Regenerative audion
1929 CW
transmitter
Loop antenna
144Mhz 300Watt amplifier
2SA13, 144Mhz beam
Filter
design
ATF54143
LNA
1Ghz VSWR
bridge
PEP power meter
Glowbugs