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

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The discussion focuses on a ratio detector circuit, specifically a connection marked in green that a user seeks to understand. The explanation clarifies that the connection is not a single path but two paths, with the top horizontal line representing the circuit's positive supply. This supply connects to one end of capacitor C25, allowing the detector to modulate signals for audio and automatic frequency control (AFC). Additionally, the positive supply feeds the primary of a multi-winding transformer to provide collector current for transistor Q26. The clarification enhances understanding of the circuit's functionality.
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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
 

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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.
 
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thank for your Replay-

G.
 
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