Note
73, Nov 1964, p. 49.
QST, Jan 1965, p. 99.
Low frequency converter for Drake 2-B Receiver
The Model 2-LF Low Frequency Converter plugs into the Calibrator Socket of the Drake 2-B Receiver. It converts low frequencies up to the 10 meter band. Extends the range of the 2-B to include Broadcast, 160 Meters, Marine, Mars, etc. Covers 0.1 to 3.5 MHz in two ranges. Crystal for 0.1 to 1.8 MHz is furnished. Accessory crystal is available for 1.8 to 3.5 MHz.
Note that the front panel crystal calibrator switch must be on in order for the converter to work.
Features
– All solid-state circuitry
– Diode ring mixer
– Transistor crystal oscillator
– Sensitivity better than 2 uV for 10 db S/N
– IF rejection better than 50 db
– Conversion oscillator attenuation 40 db
– RF input impedance 50-500 ohms, unbalanced
