QST, Dec 1973, p. 125.
QST, Sep 1974, p. 133.
QST, Feb 1975, p. 143.
The 300B "Cygnet De Novo" freshened up Swan's Cygnet transceiver series with a built-in AC supply, an internal speaker, CW sidetone, and break-in capability iwth the optional VOX accessory. It ran 300 watts PEP and covered 80–10 meters.
