neazoi
Advanced Member level 6
Hello I am trying to build a tube receiver shown here https://www.qsl.net/k5bcq/REGEN2/regen3.html
I have built the circuit but I would like to convert the audio amplifier so that it uses some kind of feedback from the output back to it's input so that it greatly amplifies the audio signal.
Reflex receivers do that but I would like to split the circuit into two tubes because I also need to have AGC.
What I am thinking is to have positive feedback to the input of the AF amplifier for a huge audio gain and negative feedback to the input of the RF amplifier to controll the gain.
Are there any tube schematics out there?
I have built the circuit but I would like to convert the audio amplifier so that it uses some kind of feedback from the output back to it's input so that it greatly amplifies the audio signal.
Reflex receivers do that but I would like to split the circuit into two tubes because I also need to have AGC.
What I am thinking is to have positive feedback to the input of the AF amplifier for a huge audio gain and negative feedback to the input of the RF amplifier to controll the gain.
Are there any tube schematics out there?