Simple RF power indicator with sharp cut-off?

[D.A.(Tony)Stewart]

Of course you could also use the LED DC current to bias the oscillator and regulate the output with AGC too with the right feedback.

 

[neazoi]

Of course you could also use the LED DC current to bias the oscillator and regulate the output with AGC too with the right feedback.

That is exactly what I am trying next https://www.edaboard.com/threads/333686/