Dynaco Stereo 120


I was looking through the for sale pages of a website and came across the images of the insides of a Dynaco Stereo 120
https://img.usaudiomart.com/uploads/2020/09/15/user_148995_large_b4f2d47a507010bc64bd6919d7fe4309.jpg

It was evident that a winding around the capacitor was done, does anyone know why?
Is it an electromagnet that has been wound, or simply to introduce inductance, is this an old lost technique?

I am curious, and figured someone in Agon might know?
128x128rixthetrick

Showing 1 response by gs5556

The output transistors are wired to the capacitor positive, that white wire connected to the negative terminal of that (output) capacitor, then wrapped around the capacitor in series to the speaker terminal. The cap blocks dc and the wire is an inductor which stabilizes the output if the speaker load is too capacitive.