DIY IF Transformers make them yourself (Part 1 of 2):
   • DIY IF Transformers make them yoursel...  

RF Coils make them yourself at home:
   • RF Coils make them yourself at home  

How to make RF Coils – Oscillator Coils – Ceramic Filters:
   • How to make RF Coils – Oscillator Coi...  


Circuit with Speaker:
https://drive.google.com/file/d/1xbmE...

Circuit with Headphones:
https://drive.google.com/file/d/1vByM...

Circuit with Audio Amplifier:
https://drive.google.com/file/d/1fzBQ...