Dual band QRP transceiver

by OH6DC

  • design based largely on Optimized QRP Transceiver by W7EL
  • two different vfos (3,5 and 7 MHz) and low pass filters
  • other circuits common for both bands
  • band change with connectors & switch
  • max output 1.5 W
  • direct conversion RX with audio filter and RIT