G4USP

Page last updated: 08/08/2021

Receivers

    HF Receiver No1

Simple crystal controlled super heterodyne SSB/CW receiver for the 40m amateur band, based around the ubiquitous NE612 mixer oscillator and TDA2003 audio power amplifier integrated circuits.

 

    HF Receiver No2

Simple crystal controlled super heterodyne SSB/CW receiver for the 40m amateur band, based around the ubiquitous NE612 mixer oscillator and LM386 audio power amplifier integrated circuits.

 

            HF Receiver No3

Simple crystal controlled super heterodyne SSB/CW receiver with AGC for the 40m amateur band, based around the ubiquitous NE612 mixer oscillator, LM324 quad operational amplifier, and LM386 audio power amplifier integrated circuits.

 

    HF Receiver No4

Simple crystal controlled direct conversion phasing SSB/CW receiver for the 30m amateur band, built using discrete components - not an IC in sight.

 

 

    Simple sensitive MSF receiver

Simple yet sensitive VLF receiver for MSF time signal.

 

 

 

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