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Loop antenna
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Drake equipment
Upgrades
R - 4C
AC - 4
Reparations
TL - 922
Radio amateurs
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Modifying my R-4C
Process phases
Original R-4C
Modifying R-4C
R-4C completed
Top panel view
DDS wiring connectors
Final details
Schuko adapter
FCN PRO filter shape factor < 4