Note
QST, Nov 1957, p. 199.
Allied Radio catalog 1960 (copyright 1959), p. 401.
Allied Radio catalog 1961 (copyright 1960), p. 397.
In 1957, Tecraft introduced a comprehensive line of crystal-controlled, cascode RF amp converters for the VHF amateur bands and government frequencies. All except the 220 MHz model had a flexibler ange of IF outputs. The CC-220 was limited to 14–18 MHz and special ranges for Collins or National receivers. Each converter had a 6 MHz pass band, with a flat response across 4 MHz of that.