59 - Analogue Direct Conversion Receiver

Nick M0NTV builds another Direct Conversion Receiver for the 40m Amateur Band. This one has an adjustable RF Preamplifier and an analogue VFO - a Franklin Oscillator. Have a very Happy Christmas and a peaceful New Year! Thank you very much for your support of the channel over the last 12 months. See you in 2025 for some more ham radio homebrewing adventures! ---------------------- RESOURCES ---------------------- My videos on Band Pass Filters: 16 - The Dark Art of the Band Pass Filter    • 16 - The Dark Art of the Band Pass Filter   37 - Building & Testing a Band Pass Filter    • 37 - Building & Testing a Band Pass Filter   +++++ My videos on double-balanced diode ring mixers: 20 - Double Balanced Diode Ring Mixer    • 20 - Double Balanced Diode Ring Mixer   22 - Testing Times for Mixers    • 22 - Testing Times for Mixers   34 - Improvements to the Direct Conversion Receiver    • 34 - Improvements to the Direct Conversion...   42 - Mixers & Modulators    • 42 - Mixers & Modulators   44 - More Mixer Testing    • 44 - More Mixer Testing   +++++ Wes Hayward's Variable Gain RF TIA (Termination Insensitive Amplifier) http://w7zoi.net/tia+agc.pdf Todd Carney K7TFC Mostly DIY RF - TIA AGC IF AMP boards & details https://mostlydiyrf.com/tia-agc +++++ Charlie Morris ZL2CTM Franklin Oscillator videos: AM Radio - Part 2a Franklin Oscillator (   • AM Radio - Part 2a Franklin Oscillator  ) AM Radio - Part 2b Buffer Amplifier (   • AM Radio - Part 2b Buffer Amplifier  ) Charlie's Notes on the Franklin Oscillator and buffer amplifier: https://zl2ctm.blogspot.com ------------------------------------------------- Hope this helps. Enjoy! 73, Nick M0NTV