NEW! Double-band Receiver CW/SSB “Lidia” (40/80 meters). ASSEMBLED RECEIVER

Description

Receiver "Lydia-band 2" is a simple direct conversion receiver designed for listening to SSB/CW Amateur radio stations, developed by the Polish Wlodzimierz Salwa (SP5DDJ).
The receiver operates in two frequency bands
3495 kHz - 3805 kHz and 6905 kHz - 7305 kHz.
The main element is a MC3361, which is used in FM receivers with double frequency conversion.
In the receiver used: internal oscillator circuits, mixer and active filter. Bandpass filters at the receiver input, in spite of using axial inductors, provides the appropriate bandwidth, sensitivity, and harmonizing with the mixer. Input sensitivity of the receiver is adjusted by a simple antenna attenuator "Level treble" on the variable resistor integrated with a manual gain control. The VFO (Variable Frequency Oscillator) is running in the circuit with the chokes on 80 m and 40 m, varactors and variable resistor configuration. The stability of the VFO enough to listen to the stations.
Frequency meter has 4 digits to show the current frequency. The tuning is very smooth (via multi-turns potentiometer).
Dimensions:
150*110*78 mm.
Weigh:
0.35 kg