ASP8120-issue / 2021.03.19

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C43 worn out

Test-Condition: full load (3R5 @ +18V and -18V)

both rails -> oscillation “in sync”…

after replacing 3x TL072 it looks symmetric…

AC measurements / both rails (occuring every few minutes or so)

after replacing Transistors on negative supply rail:

after replacing Transistors on positive supply rail: