AB YOUR ANSWER: "Understanding the Ratio Detector Circuit: Explanation and Tips

[gabrigam66]

TL;DR

Ratio Detector connection question

Hi,

I built the attached ratio detector circuit and it works but I can't understand the reason for the connection marked in green.

I need an explanation, please.

Thanks in advance.

GR

 

[NascentOxygen]

What you have marked is not one path, it's two paths. The horizontal line along the top is the circuit's + supply. It is taken to one end of C25, and the detector modulates it to form the audio and AFC signal. The + supply is also taken to the primary of the multi-winding transformer to supply the collector current for Q26.

 

[gabrigam66]

thank for your Replay-

G.