bullet The Hell Feldfernschreiber:
bullet My Feld-Hell machine from PAŘCX
bullet History and patents
bullet How it works
bullet Photos
bullet 3D photos
bullet Electronic circuitry
bullet The RV12P4000 tube
bullet Interfaces to transceiver
bullet Maintenance
bullet Sounds from Hell
bullet Presentation (in work)
bullet Other Hellschreiber models and modes:
bullet Hell 72b/c "GL", and Hell 73 "AGL"
bullet Hell-80
bullet Modern "software" modes (FM, MT, etc.)
bullet Other Siemens Hellschreibers
bullet Other manufacturers
bullet Articles, literature, documentation
bullet My Hell WebCam
bullet Homebuilt Hell-printers:
bullet My Hell-printer
bullet Other homebuilts
bullet Hell/CW filter
bullet Paper tape, ink, felt ink rollers
bullet Hell software & PC-interfacing:
bullet Hellschreiber software
bullet Soundcard interfacing
bullet Links:
bullet Hellschreiber
bullet German 1930s-40s radio technology
bullet Frequencies, contests, and events:
bullet Frequencies, nets
bullet Contests, activities
bullet Annual Hell Meeting
bullet Send email to N4SPP

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©1999-2009 F.M.G. Dörenberg