The Ameco 6-meter Converter, Model CB-6, is a crystal-controlled, broadband Converter. When ;ed in conjunction with a receiver, it will provide reception of the 6-meter amateur band- 50 Me. to 54 Me. The converter uses a 6ES8 cascode r - f amplifier and a 6U8A mixer-oscillator. The circuitry used, together with considerable internal shielding and by-passing, provide high sensitivity to the desired signals and .jnaximum rejection of spurious, undesired signals. A novel feature of this unit is that the output frequency may be changed by simply changing the crystal and the tap on the output coil. This feature prevents the converter from becoming obsolete when the receiver is changed to a different type*