Published On Jun 14, 2020
This video walks through 2 issues regarding older tube era radio repair:
1) Recognizing, Diagnosing and Fixing unwanted IF transformer feedback and oscillations
2) Recognizing, Diagnosing and Fixing "motorboating" oscillations.
I talk a little about how leading dressing can cause feedback induced oscillations in the circuit.
I look at some old documentation on diagnosing these issues.
I also look at a strange circuit design for RF, IF front end ground coupling.
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