Hi,
I have built 4 different solid state super regenerative receivers for the aircraft band.
Unfortunately, it is very difficult to find information to improve the performance.
Here are my specific questions about quench :
It is said that “
The performance is better when the circuit is not self-quenched but using a separate quench oscillator”.
So I have built a separate sawtooth generator. It is connected to the 2N2369A emitter after the VK200 choke with disconnecting the 1nF capacitor (See the schematic).
The sawtooth as a stand alone generator works fine.
But the problem is when connected it to the receiver the sawtooth signal is strongly attenuated.
I have tried to insert a buffer circuit with a common collector transistor but it doesn’t work !
Do you have any idea for solving this issue ?
Thanks for your help
73 Philippe
https://drive.google.com/file/d/1-UFDdpoL3ZYJafie9P9wloaexcLaxihA/view?usp=sharing